SC's Question number - 915 , 916

915). Visitors to the park have often looked up into the leafy canopy and saw monkeys sleeping on the branches, whose arms and legs hang like socks on a clothesline.

(A) saw monkeys sleeping on the branches, whose arms and legs hang

(B) saw monkeys sleeping on the branches, whose arms and legs were hanging

(C) saw monkeys sleeping on the branches, with arms and legs hanging

(D) seen monkeys sleeping on the branches, with arms and legs hanging

(E) seen monkeys sleeping on the branches, whose arms and legs have hung

916). Warning that computers in the United States are not secure, the National Academy of Sciences has urged the nation to revamp computer security procedures, institute new emergency response teams, creating a special nongovernment organization to take charge of computer security planning.

(A) creating a special nongovernment organization to take

(B) creating a special nongovernment organization that takes

(C) creating a special nongovernment organization for taking

(D) and create a special nongovernment organization for taking

(E) and create a special nongovernment organization to take


Answers:

915). OA - D

OE - The subject of the main clause is visitors, which should be followed by two verbs using the same tense: have looked and have seen. Have does not need to be repeated in the second verb; it is entirely correct simply to let it be understood. The modifying clause whose arms and legs illogically refers to branches, which immediately precedes it, rather than to monkeys. Replacing the clause with the phrase with arms and legs hanging corrects this error.

A - incorrect - Saw is the wrong verb tense; the clause incorrectly modifies branches

B - incorrect - Saw is the wrong verb tense; the clause does not modify monkeys

C - incorrect - Saw is the wrong verb tense

E - incorrect - The clause modifies branches rather than monkeys; have hung is the wrong tense

916). OA - E

OE - This sentence contains a list of three elements, all of which should be parallel. The last element should be preceded by the conjunction and. In this sentence, the last element must be made parallel to the previous two: (1) to revamp computer security procedures, (2) institute new emergency response teams, and (3) create a special nongovernment organization to take charge of computer security planning. Omitting and causes the reader to anticipate still another element in the series when there is none. Using the participle creating not only violates parallelism but also causes misreading since the participial phrase could modify the first part of the sentence. To does not need to be repeated with institute and create because it is understood.

A - incorrect - Creating is not parallel to to revamp and (to understood) institute, and is needed in this series

B - incorrect - Creating violates the parallelism of the previous two elements; and is needed in this series; since the organization does not yet exist, that takes is illogical

C - incorrect - Creating is not parallel to to revamp and (to understood) institute, and is needed in this series; to has the sense of in order to, but for taking is neither precise nor idiomatic

D - incorrect - In the construction create ... to take, the sense of to is in order to; for taking is not idiomatically correct.

SC's Question number - 917, 918

917). Water and resource management problems will be at the head of the legislature's list of concerns for the coming session.

(A) Water and resource management problems

(B) Problems of managing water and resources

(C) Problems in the management of water and other resources

(D) Problems of water and other resource management

(E) Resource management problems, including water

918). What brought the automobile company back from the verge of bankruptcy shortly after the Second World War was a special, governmentally sanctioned price increase allowed during a period of wage and price controls.

(A) What brought

(B) The thing that brought

(C) That which brought

(D) Bringing

(E) What has brought

Answers:

917). OA - C - Problems in —compare with Difficulties in

A - incorrect - wrongly suggests that water will be at the head of list of issues.

B - incorrect - Problems of managing - is wrong.Problems in the management - is the correct usage. Further it should be water and other resources as resources includes water.

D - incorrect - wrongly says problems of water and problems of other resource management are at the head of the list.

E - incorrect - Resource management problems cannot include water. Resources can include water.

918). OA - A - what correctly refers to noun increase

B, C - incorrect - wordy

D - incorrect - wrong tense - bringing suggests an ongoing condition and is incompatible with an action that was completed shortly after the second world war.

E - incorrect - violating parallelism - past tense brought is needed to parallel was. Further has brought indicates action that continues up to the present.

SC's Question number - 919, 920

919). What was as remarkable as the development of the compact disc has been the use of the new technology to revitalize, in better sound than was ever before possible, some of the classic recorded performances of the pre-LP era.

(A) What was as remarkable as the development of the compact disc

(B) The thing that was as remarkable as developing the compact disc

(C) No less remarkable than the development of the compact disc

(D) Developing the compact disc has been none the less remarkable than

(E) Development of the compact disc has been no less remarkable as

920). When Congress reconvenes, some newly elected members from rural states will try and establish tighter restrictions for the amount of grain farmers are to be allowed to grow and to encourage more aggressive sales of United States farm products overseas.

(A) and establish tighter restrictions for the amount of grain farmers are to be allowed to grow and to encourage

(B) and establish tighter restrictions on the amount of grain able to be grown by farmers and encouraging

(C) establishing tighter restrictions for the amount of grain farmers are allowed to grow and to encourage

(D) to establish tighter restrictions on the amount of grain capable of being grown by farmers and encouraging

(E) to establish tighter restrictions on the amount of grain farmers will be allowed to grow and to encourage

Answers:

919). OA - C - idiomatic - no less .... than

A, B - incorrect - wordy - what was and The thing was that

B, D - incorrect - violating parallelism - developing the compact disc....the use of new technology to revitalize...performances

D - incorrect - unidiomatic - none the less....than in

E - incorrect - unidiomatic - no less....as

920). OA - E

A - incorrect - wordy (to be). Further when will try is used with another verb to show purpose or intent, the correct expression is will try to, not will try and.

B - incorrect - Passive and wordy -- able to be grown by. Further this choice violates parallelism - and establish....and encouraging...

C - incorrect - violating parallelism - establishing .... to encourage

D - incorrect - Passive and wordy - capable of being grown by. Further this choice violates parallelism - encouraging and to establish.

SC's Question number - 921, 922

921). When evidence of financial wrongdoing by an elected official surfaces, it is the electorate who must decide whether the evidence warrants censuring him or ousting him from office.

(A) whether the evidence warrants censuring him or ousting him

(B) if there is evidence that warrants a censure or an ousting of him

(C) whether or not the evidence warrants the censuring or ousting of him

(D) if there is evidence that warrants censuring him or his ousting

(E) if the evidence would warrant that he be censured or that he be ousted

922). When rates were raised in 1985, postal service officials predicted they would make further rate increases unnecessary for at least three years.

(A) they would make further rate increases unnecessary

(B) they would mean that further rate increases would not be needed

(C) that it would not be necessary for further rate increases

(D) that the increase would make further rate increases unnecessary

(E) further rate increases will not be needed

Answers :

921). OA - A - For use of "whether vs if" click on the link below..

http://gmat-grammar.blogspot.com/2006/07/whether-vs-if.html

B, D, E - incorrect - Use of if wrong - "whether" is preferred over "if" when deciding between two things/choices.

C - incorrect - redundancy error - whether 0r not

922). OA - D - For the use of subjunctive verbs click on the link below..

http://gmat-grammar.blogspot.com/2006/06/subjunctive-verbs.html

A, B, E - subjunctive - that is required after predicted.

A, B - incorrect - ambiguous they

C - incorrect - unclear antecedent for it

SC's Question number - 923, 924

923). When the prime lending rates went up in 1987, economists determined they would cause interest rates to rise and then decline over the ensuing five-year period

(A) they would cause interest rates to rise and then decline

(B) they would mean that interest rates would rise and then decline

(C) that they will cause interest rates to rise and then decline

(D) that the increase would cause interest rates to rise and then decline

(E) that the increase would cause interest rates' rising and subsequent declining

924). When the technique known as gene-splicing was invented in the early 1970’s, it was feared that scientists might inadvertently create an “Andromeda strain,” a microbe never before seen on Earth that might escape from the laboratory and it would kill vast numbers of humans who would have no natural defenses against it.

(A) it would kill vast numbers of humans who would have no natural defenses against it

(B) it might kill vast numbers of humans with no natural defenses against it

(C) kill vast numbers of humans who would have no natural defenses against it

(D) kill vast numbers of humans who have no natural defenses against them

（C）(E) kill vast numbers of humans with no natural defenses against them


Answers :

923). OA - D

A,B,C - incorrect - ambiguous they

E - incorrect - interest rates' rising and subsequent declining

924). OA - C

A, B - incorrect - violate parallelism - introduce new independent clause - it would kill.... and it might kill....

D, E - incorrect - pronoun reference - singular (microbe) .... plural (them)

B, D, E - incorrect - lack would - hence do not express conditional

SC's Question number - 925, 926

925). Where once the union had acquiesced to the prejudices of its English-speaking members by supporting the imposition of an alien tax on immigrant workers, after 1897 the United Mine Workers made a determined effort to enlist Italians and Slavs in its ranks.

(A) Where once the union had acquiesced to the prejudices of its English-speaking members by supporting

(B) Where once the union acquiesced to it English-speaking members' prejudice for the support of

(C) While once the union had acquiesced to the prejudices of its English-speaking members in support of

(D) While once the union acquiesced to its English-speaking members' prejudice in supporting

(E) While once the union had acquiesced to the prejudices of its English-speaking members in its supporting of

926). While all states face similar industrial waste problems, the predominating industries and regulatory environment of the states obviously determines the types and amounts of waste produced, as well as the cost of disposal.

(A) all states face similar industrial waste problems, the predominating industries and regulatory environment of the states obviously determines

(B) each state faces a similar industrial waste problem, their predominant industries and regulatory environment obviously determine

(C) all states face a similar industrial waste problem, their predominating industries and regulatory environment obviously determines

(D) each state faces similar industrial waste problems, the predominant industries and regulatory environment of each state obviously determines

(E) all states face similar industrial waste problems, the predominant industries and the regulatory environment of each state obviously determine

Answers --

925). OA - A

B - incorrect - changes the meaning of the sentence - illogically suggests that imposition of an alien tax was the reason why the union acknowledged the prejudice of its english-speaking members.

C, D, E - incorrect - use of while wrong

926). OA - E

OE - This sentence requires careful attention to number and agreement. The main clause has a compound subject, the predominating industries and the regulatory environment, which must take a plural verb, determine, rather than the singular verb shown in the original sentence. The sentence begins with the conjunction while, here used to mean although, and contrasts the similar situation of all states with the varying conditions of each state. The regulatory environment is singular and must logically be completed by of each state rather than of the states; the point of the main clause is that all states do not share the same predominating industries and regulatory environment.

A - incorrect - The compound subject does not agree with the singular verb determines; main clause should call attention to conditions of each state, not the states

B - incorrect -Each state must be compared to all other states; their does not agree with each

C - incorrect - Using a semicolon results in a sentence fragment; subject and verb do not agree

D - incorrect - Each state must be compared to all other states; subject and verb do not agree

NOTE: Like while, where can be used in the same way as whereas. But between while and whereas, one should go with whereas (or where in this case) if while can be ambiguous in the sentence, since it can mean whereas or at the same time that .

e.g - Ram prefers to drink coffee at cafe coffee day while Shyam drinks coffee at Barista.

SC's Question number - 927, 928

927). While depressed property values can hurt some large investors, they are potentially devastating for home-owners, whose equity―in many cases representing a life's savings―can plunge or even disappear.

(A) they are potentially devastating for homeowners, whose

(B) they can potentially devastate homeowners in that their

(C) for homeowners they are potentially devastating, because their

(D) for homeowners, it is potentially devastating in that their

(E) it can potentially devastate homeowners, whose

928). While Jackie Robinson was a Brooklyn Dodger, his courage in the face of physical threats and verbal attacks was not unlike that of Rosa Parks, who refused to move to the back of a bus in Montgomery, Alabama.

(A) not unlike that of Rosa Parks, who refused

(B) not unlike Rosa Parks, who refused

(C) like Rosa Parks and her refusal

(D) like that of Rosa Parks for refusing

(E) as that of Rosa Parks, who refused


Answers --

927). OA - A - Explanation given on link below - question number is 100
http://gmatsentencecorrection.blogspot.com/2007/03/gmat-sentence-correction-100.html

928). OA - A

B, C - incorrect - wrongly compares Robinson's courage to Rosa Parks herself

D - incorrect - wrongly suggests that it is Robinson's courage "which refused" - instead it should be "Parks" herself who refused to go to the back of the bus.

E - incorrect - wrongly uses as to compare nouns.

SC's Question number - 929, 930

929). While larger banks can afford to maintain their own data-processing operations, many smaller regional and community banks are finding that the cost associated with upgrading data-processing equipment and with the development and maintenance of new products and technical staff are prohibitive.

(A) cost associated with

(B) costs associated with

(C) costs arising from

(D) cost of

(E) costs of

930). While some academicians believe that business ethics should be integrated into every business course, others say that students will take ethics seriously only if it would be taught as a separately required course.

(A) only if it would be taught as a separately required course

(B) only if it is taught as a separate, required course

(C) if it is taught only as a course required separately

(D) if it was taught only as a separate and required course

(E) if it would only be taught as a required course, separately


Answers --

929). B is the best choice - maintaining parallelism (costs associated with....and with) and subject verb agreement (....costs....are....)

A, D - incorrect - subject (costs) needs to be plural because of the plural verb "are prohibitive "

C, E - violating parallelism


930). OA - B - If...then construction rule on the link below
http://gmat-grammar.blogspot.com/2006/06/if-then-construction.html

A, D, E - incorrect - violating if ...then construction rule.

C - incorrect - changes the meaning of the sentence...only is placed wrongly after taught.

SC's Question number - 931, 932

931). While some propose to combat widespread illegal copying of computer programs by attempting to change people's attitudes toward pirating, others by suggesting reducing software prices to decrease the incentive for pirating, and still others by calling for the prosecution of those who copy software illegally.

(A) by suggesting reducing software prices to decrease the incentive for pirating, and still others by calling

(B) by suggesting the reduction of software prices to decrease the incentive for pirating, and still others call

(C) suggest the reduction of software prices for decreasing the incentive for pirating, and still others call

(D) suggest the reduction of software prices to decrease the incentive for pirating, and still others by calling

(E) suggest reducing software prices to decrease the incentive for pirating, and still others are calling

932). While the base salary for the top five officers of the company did not change from 1990 to 1991, cuts were made nonsalary compensation, as in allowances for overseas assignments and club memberships.

(A) cuts were made nonsalary compensation, as in

(B) cuts were made in such nonsalary compensation as

(C) cuts were made in such nonsalary compensation as those in

(D) cuts in nonsalary compensation were made in areas like

(E) there were cuts made in nonsalary compensation, in areas like

Answers --

931). E is the best choice - maintains parallelism - While some propose to combat widespread illegal copying of computer programs by attempting to change people's attitudes toward pirating, others suggest reducing software prices to decrease the incentive for pirating, and still others are calling for the prosecution of those who copy software illegally.

A, B - lack parallelism - ...some propose....others by suggesting

C - incorrect - unidiomatic - for decreasing - correct idiom to decrease

D - incorrect - lack parallelism - ...some propose...others suggest.....others by calling

932). B is the best answer - While the base salary for the top five officers of the company did not change from 1990 to 1991, cuts were made in such nonsalary compensation as allowances for overseas assignments and club memberships

Use of such as right - states examples of nonsalary compensation - 'allowances for overseas assignments' and 'club memberships'

Like vs such as -- http://gmat-grammar.blogspot.com/2006/06/like-vs-such-as.html

A - incorrect - such is missing

C - incorrect - use of those in

D, E - incorrect - use of like

Gmat Sentence Correction - 100

100). While depressed property values can hurt some large investors, they are potentially devastating for home-owners, whose equity - in many cases representing a life's savings - can plunge or even disappear.

(A) they are potentially devastating for homeowners, whose

(B) they can potentially devastate homeowners in that their

(C) for homeowners they are potentially devastating, because their

(D) for homeowners, it is potentially devastating in that their

(E) it can potentially devastate homeowners, whose

Answer -- Best answer - A - they clearly refers to property values - subject of the first clause - property values.Subject of the second clause - they. Hence they refers to the subject of the first clause.

B - incorrect - redundancy error - can potentially

B, C - incorrect - ambiguous their - referring to homeowners or property values.

D,E - incorrect - subject verb agreement - ....property values...it

SC's Question number - 933, 934

933). While the owner of a condominium apartment has free and clear title to the dwelling, owners of cooperative apartments have shares in a corporation that owns a building and leases apartments to them.

(A) While the owner of a condominium apartment has free and clear title to the dwelling,

(B) The owner of a condominium apartment has free and clear title to the dwelling, but

(C) Whereas owners of condominium apartments have free and clear title to their dwellings,

(D) An owner of a condominium apartment has free and clear title to the dwelling, whereas

(E) Condominium apartment owners have a title to their dwelling that is free and clear, while

934). William H. Johnson's artistic debt to Scandinavia is evident in paintings that range from sensitive portraits of citizens in his wife's Danish home, Kerteminde, and awe-inspiring views of fjords and mountain peaks in the western and northern regions of Norway.

(A) and

(B) to

(C) and to

(D) with

(E) in addition to

Answers --

933). OA - C

A, B, D - incorrect - wrong comparison - compares owner to owners.

Use of while incorrect in A. Further what does the dwelling refer to?

E - incorrect - not clear that whether it is the dwelling or the title which is free and clear. Further dwellings cannot be free but the title can

934). OA - B - idiom range from X.....to ....Y --- Johnson's paintings range from... portraits ... to...views

A, C, D, E - unidiomatic -- range from x must be completed by to y

SC's Question number - 935, 936

935). Wind resistance created by opening windows while driving results in a fuel penalty as great or greater than is incurred by using air conditioning .

(A) as great or greater than is incurred by using air conditioning

(B) that is as great or greater than is incurred using air conditioning

(C) as great as or greater than that of using air conditioning

(D) at least as great as air conditioning's

(E) at least as great as that incurred by using air conditioning

936). Wisconsin, Illinois, Florida, and Minnesota have begun to enforce statewide bans prohibiting landfills to accept leaves, brush, and glass clippings.

A) prohibiting landfills to accept leaves, brush, and grass clippings

B) prohibiting that landfills accept leaves, brush, and grass clippings

C) prohibiting landfills from accepting leaves, brush, and grass clippings

D) that leaves, brush, and grass clippings cannot be accepted in landfills.

E) that landfills cannot accept leaves, brush, and glass clippings.



Answers --

935). OA - E - idiom as...as and maintains parallelism - ...created by opening...incurred by using...

A, B - incorrect - unidiomatic

C - incorrect - "as great or greater..." can and should be replaced by the concise phrase "at least as great as...". Further C wrongly suggests that penalty is of using the AC.

D - incorrect - wrong comparison


936). OA - C - correct idiom - to prohibit X from doing Y

A, B - incorrect - unidiomatic.

D, E - incorrect - ban that is wrong - cannot(negative) after ban is wrong - Further ban + noun clause is wrong. Ban + adjective clause is right.

SC's Question number - 937, 938

937). With a total population of less than two hundred and fewer breeding females than ever before, the American crocodile seemed a decade ago to be in danger of disappearing.

(A) of less than two hundred and fewer

(B) lower than two hundred and less

(C) lesser than two hundred and fewer

(D) fewer than two hundred and less

(E) of fewer than two hundred and of fewer

938). With diamonds, as with all gems, one should ask for a written description of one's purchase; the description may prove useful later if you have reason to believe the jeweler misled you.

(A) one should ask for a written description of one's purchase

(B) you should ask for a written description of your purchase

(C) a written discretion of your purchase is what one should ask for

(D) a written description of one's purchase is what should be asked for

(E) a written description of your purchase is what should be asked for

Answers --

937). OA - A - For less vs fewer click on the link below.

http://gmat-grammar.blogspot.com/2006/08/less-vs-fewer.html

B - incorrect - use of lower than wrong here - "lower than" is generally used in comparing 2 subject's rank or position.

C - incorrect - use of lesser wrong

D, E - incorrect - population is uncountable -- the use of fewer is wrong

938). B is the best choice.

A, C, D - incorrect - We can see that from the latter half of the sentence that the subject of the first part of the sentence should be you.

E - incorrect - Subject missing - who asks for the description?

SC's Question number - 939, 940

939). With its abundance of noun inflections, Icelandic is one of several Germanic languages that is compact when written but can lengthen considerably when translated into English.

(A) is compact when written but can lengthen considerably when translated into English

(B) are compact when they are written, but they can lengthen considerably when they are translated in English

(C) is compact when written but can lengthen considerably when being translated into English

(D) are compact when written but can lengthen considerably in English translation

(E) is compact when it is written but can lengthen considerably when translated in English

940). With its plan to develop seven and a half acres of shore land, Cleveland is but one of a large number of communities on the Great Lakes that is looking to its waterfront as a way to improve the quality of urban life and attract new businesses.

(A) is looking to its waterfront as a way to improve the quality of urban life and attract

(B) is looking at its waterfront to improve the quality of urban life and attract

(C) are looking to their waterfronts to improve the quality of urban life and attract

(D) are looking to its waterfront as a way of improving the quality of urban life and attracting

(E) are looking at their waterfronts as a way they can improve the quality of urban life and attract


Answers --

939). OA - D - one of + Plural noun + that/who + Plural verb

A, C, E - incorrect - is wrong - several Germanic languages

B - incorrect - wordy. Further there is no need of first they - when they are written, but they


940). Best answer - C - one of + Plural noun + that/who + Plural verb

A, B - incorrect - is wrong - a large number of communities on the Great lakes - plural (a large number - always plural)

D - incorrect - subject verb agreement - are ....its

E - incorrect - wrong idiom use look at - look to (someone or something) implies To rely on, turn to or refer to them or it Example: looked to her for support. look at implies To turn the eyes in a certain direction so as to see; to use one's sight.Example: Take a look at that new building

SC's Question number - 941, 942

941). With just several quick strokes of the pen, the monkeys were drawn by the artist, capturing their antics.

(A) the monkeys were drawn by the artist, capturing their antics

(B) the artist sketched the monkeys, capturing their antics

(C) the artist captured the antics of the monkeys, sketching them

(D) the artist sketched the monkeys and also capturing their antics

(E) the monkeys and heir antics were sketched by the artist

942). With only 5 percent of the world's population, United States citizens consume 28 percent of its nonrenewable resources, drive more than one-third of its automobiles, and use 21 times more water per capita than Europeans do.

(A) With

(B) As

(C) Being

(D) Despite having

(E) Although accounting for


Answers --

941). Best answer B.

A, E - incorrect - passive. Further the modifier 'With just several quick strokes of the pen' should be followed by the noun that performs this action.

C - incorrect - ambiguous them, misplaced modifier - monkeys cannot sketch

D - incorrect - wrongly suggests that the artist captured their antics

942). OA - E -- Subject - "United States citizens " and not "United States".

A, C, B - incorrect - need a contrast.

D - incorrect - unidiomatic - despite having.

Further A, D incorrectly modifying United States

SC's Question number - 943, 944

943). With total sales of less than three hundred thousand dollars and fewer new subscribers than last year, the New England Theatre Company is in danger of losing its building.

(A) of less than three hundred thousand dollars and fewer

(B) lower than three hundred thousand dollars and less

(C) lesser than three hundred thousand dollars and fewer

(D) fewer than three hundred thousand dollars and less

(E) of fewer than three hundred thousand dollars and of fewer

944). Within the boundaries of artistic rivalry lies a sense of family: the shared genetic inheritance, or accident, that enables musicians to make music.

(A) Within the boundaries of artistic rivalry lies a sense of family

(B) Within the boundaries of artistic rivalry lays a sense of family

(C) A sense of family lies inside of the boundaries of artistic rivalry

(D) A family sense lies within artistic rivalry's boundaries

(E) Within artistic rivalry's boundaries lays a family sense


Answers --

943). OA - A - less vs fewer on the link below

http://gmat-grammar.blogspot.com/2006/08/less-vs-fewer.html

B, D - incorrect - use of less wrong - subscribers are countable so fewer should be used.

C - incorrect - lesser than

E - incorrect - sales are uncountable so fewer is wrong

944). OA - A
Lay = to put something down (Transitive verb - needs direct object) lie = to rest, to recline (intransitive verb)

B, E - incorrect - use of lay incorrect - sense is not an object so it cannot lay

C - incorrect - inside of the boundaries of - awkward

C, D - incorrect - wrongly modifies “the boundaries of artistic rivalry” -- should modify “a sense of family.”

Gmat Sentence Correction - 99

99). A recent study of ancient clay deposits has provided new evidence supporting the theory of global forest fires ignited by a meteorite impact that contributed to the extinction of the dinosaurs and many other creatures some 65 million years ago.

(A) supporting the theory of global forest fires ignited by a meteorite impact that

(B) Supporting the theory that global forest fires ignited by a meteorite impat

(C) that supports the theory of global forest fires that were ignited by a meteorite impact and that

(D) in support of the theory that global forest fires were ignited by a meteorite impact and that

(E) of support for the theory of a meteorite impact that ignited global forest fires and


Answer --

B is the best choice - theory that - theory that: a belief, a hypothesis Ex: Theory That Life Began in Volcanic Environment etc

A - incorrect - theory of - theory of: when it is a set of widely accepted facts or principles Ex: theory of relativity. discrete analytical functions, theory of relativity etc.

C - incorrect - evidence supporting more concise than evidence that supports.(GMAT prefers concise choices)

D - incorrect - that after and incorrectly introduces a restrictive clause - A recent study of ancient clay deposits has provided new evidence in support of the theory that global forest fires were ignited by a meteorite impact conjunction and that contributed to the extinction of the dinosaurs and many other creatures some 65 million years ago - because how can the theory contribute to the extinction of...?

E - incorrect - support for the theory