While an extensive amount of research into the cause of acoustic neuro

Question

While an extensive  amount of research into the cause of acoustic neuromas have proven unsuccessful , doctors have developed new surgical options that have dramatically increased patients' survival rates.

(A) amount of research into the cause of acoustic neuromas have proven unsuccessful

(B) amount of research into the cause of acoustic neuromas has proven unsuccessful

(C) quantity of research into the cause of acoustic neuromas have proven to be unsuccessful

(D) cause research into acoustic neuromas has proven unsuccessful

(E) amount of research has proven unsuccessful into the cause of acoustic neuromas

This is a  SC Butler Question

Check the links to other Butler Projects: 
 
   Data Sufficiency Butler 
   Problem Solving Butler  
   Critical Reasoning Butler  
   Reading Comprehension Butler  
   Integrated Reasoning Butler

Nielgmat · Answer

While an extensive  amount of research into the cause of acoustic neuromas have proven unsuccessful,  doctors have developed new surgical options that have dramatically increased patients' survival rates.

(A)  amount of research  into the cause of acoustic neuromas  have  proven unsuccessful -  Subject is singular (Collective Noun), verb is plural - SVA error

(B) amount of research into the cause of acoustic neuromas has proven unsuccessful -  Above error rectified, no other error. Correct choice.

(C) quantity of research into the cause of acoustic neuromas have proven to be unsuccessful -  'quantity of research' is wrong. Research in uncountable noun, hence 'amount of research' should be used. In any case, 'quantity' is also singular, hence 'have' is incorrect - SVA error.

(D)  cause research into acoustic neuromas   has proven unsuccessful -  highlighted portion is absurd, changes meaning.

(E) amount of research has proven  unsuccessful into the cause  of acoustic neuromas -  highlighted portion is absurd, changes meaning.

Abhishek009 · Answer

(C) & (D) can be straightaway rejected as amount and research into , respectively are outright incorrect and can be rejected...

(A) amount of --- have , incorrect S-V usage

(E) unsuccessful into the cause of acoustic neuromas - Awkward and incorrect

Hence, Answer must be (B)

imtiaz91 · Answer

The correct sentence structure would be:

(B) The amount of research into the cause of acoustic neuromas has proven unsuccessful.

This sentence uses the correct subject-verb agreement, stating that "the amount of research" (singular subject) "has proven" (singular verb) unsuccessful.

DrHuber · Answer

The correct option is (B) "amount of research into the cause of acoustic neuromas has proven unsuccessful."

This option maintains subject-verb agreement by using the singular form "has" to agree with "amount." Additionally, it correctly states that the research into the cause of acoustic neuromas has been unsuccessful.

Option (A) is incorrect because it uses the plural verb form "have" with the singular subject "amount."

Option (C) is grammatically incorrect because it uses the plural verb form "have" with the singular subject "quantity."

Option (D) is incorrect because it rearranges the sentence structure and does not accurately convey the intended meaning.

Option (E) is incorrect because it places the phrase "has proven unsuccessful" too far from its intended subject "amount of research."

Bunuel · Answer

KAPLAN OFFICIAL EXPLANATION:

Once again we deal with the noun amount, but here it's the subject of the first part of the sentence. Since amount is singular, the verb needs to be has been, so you can eliminate (A) and (C). Amount of research is better than cause research (which makes no sense at any rate), leaving you with (B) and (E). (E) creates a misplaced modifier, so (B) is the correct choice.

An 800 test taker is aware that each wrong choice is usually wrong for more than one reason. If she doesn't know how to spot or correct one error, she looks for another one.

While an extensive amount of research into the cause of acoustic neuro

Prep Toolkit

Top 5 GMAT Debrief Videos

615 to 715 in 15 Days (Ria's Strategies)

More than Quant/Verbal Abilities: Speed vs. Accuracy

745 with Only Self-Prep and GMAT Club

From 555 to 765: 210-point Improvement

Perfect 805 Score Debrief by Julia

My Rewards

GMAT Sentence Correction (SC - EA only) Questions

While an extensive amount of research into the cause of acoustic neuro

Prep Toolkit

615 to 715 in 15 Days (Ria's Strategies)

More than Quant/Verbal Abilities: Speed vs. Accuracy

745 with Only Self-Prep and GMAT Club

From 555 to 765: 210-point Improvement

Perfect 805 Score Debrief by Julia

My Rewards