The hypothesis of dark matter consisting of giant particles,

A)of dark matter consisting of giant particles, light-years across in length, width, and depth, is gaining interest among astrophysicists.Incorrect.."hypotheis" is a concept/proposal/message... so we need to tell the concept..not what the concept is about... so Hypothesis "that" is the correct way

B)of dark matter that consists of giant particles, light-years across in length, width, and depth, is gaining interest among astrophysicists.Incorrect.."hypotheis" is a concept/proposal/message... so we need to tell the concept..not what the concept is about... so Hypothesis "that" is the correct way
C)that dark matter consists of giant particles, light-years across in length, width, and depth, is gaining interest among astrophysicists.Correct

D)that is gaining interest among astrophysicists is that dark matter consists of giant particles, light-years across in length, width, and depth.Incorrect..The hypothesis will remain the same even if its gaining interest or not... meaning is getting changed here ...

E)which is that dark matter consists of giant particles, light-years across in length, width, and depth, is gaining interest among astrophysicists.Incorrect.."Hypothesis" cannot be the dark matter..Its a concept

how many of you would pick the rigth answer without relying on the idiom of this sentence ??' based on only the logic ??

Hi Carcass,
Initially i went for the meaning approach(Still using it), Since understanding the meaning is important so that it will easy to eliminate wrong choices, and when i was doing SC questions, i was able to eliminate few wrong answers with the meaning and logic.

Then comes the rules when you are struck between 2 or 3 answers choices, i'm not sure whether it is correct, but thats how i do

Normally, the pattern in A,B,C will not stand together in one question; each will appear in different questions. Since these patterns are important, test takers must learn them.

The sentence as written contains a usage error. The proper idiom is the hypothesis that ..., not "the hypothesis of ...." Note that this is a case of an -ing verb form, "consisting," signaling an error on the GMAT. The correct sentence will be structured to say dark matter consists of giant particles. However, the verb later in the sentence, "is gaining," is the correct present progressive tense to indicate an ongoing action and uses a helping verb, "is," along with the -ing form.

A vertical scan of the first words of the choices reveals that (A) and (B) use the incorrect "of," (C) and (D) use the correct "that," and (E) uses the incorrect "which is that."

(A), (B), and (E) can be eliminated immediately, because they don't use the idiomatic form the hypothesis that. Proceed to compare (C) and (D).

(D) changes the meaning of the sentence slightly. By saying "the hypothesis that is gaining interest," (D) misleadingly implies that this hypothesis is the only hypothesis that is gaining interest among astrophysicists. The original sentence intends to convey the fact that this particular hypothesis is gaining interest, regardless of what is happening with other hypotheses.

(C) uses the correct form "the hypothesis that. . ." without introducing any new problems. Therefore (C) is correct.

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