Retrospective analyses shows that pro-biotic therapeutic compounds

Question

Retrospective analyses shows that pro-biotic therapeutic compounds in plants and other biological sources  are usually able to be augmented, which makes them more effective drugs .

A. are usually able to be augmented, which makes them more effective drugs
B. are usually able to be augmented to make them a more effective drug
C. are usually able to be augmented to make them more effective drugs
D. can usually be augmented to make them a more effective drug
E. can usually be augmented to make them more effective drugs

mohshu · Answer

are usually able to be augmented is unidiomatic....

ans D

stne · Answer

Only contenders are D and E, in other options " able to be augmented" is awkward.

Between D and E:
Its unlikely that the various compounds will be made into one drug.
hence plural DRUGS is correct.

elegantm · Answer

Retrospective analyses shows that pro-biotic therapeutic compounds in plants and other biological sources  are usually able to be augmented, which makes them more effective drugs .

A. are usually  able to be  augmented,  which  makes them more effective drugs  - Use of ABLE TO BE changes the original intent since such use means that Therapeutic compounds can augment ITSELF. Moreover, use of WHICH is incorrect. Hence incorrect.  
B. are usually  able to be  augmented to make them a more effective  drug .  - Use of ABLE TO BE changes the original intent since such use means that Therapeutic compounds can augment ITSELF. Word DRUGS should be use since such compounds can form different types of drugs and not just one. Hence incorrect. 
C. are usually  able to be  augmented to make them more effective drugs  - Use of ABLE TO BE changes the original intent since such use means that Therapeutic compounds can augment ITSELF. Hence incorrect. 
D. can usually be augmented to make them a more effective drug  - Word DRUGS should be use since such compounds can form different types of drugs and not just one. Hence incorrect. 
E. can usually be augmented to make them more effective drugs  - CORRECT

devikeerthansr · Answer

able to be augmented is unidiomatic. Between D and E. D is wrong because of singular form.E is correct

BarcaForLife · Answer

I think this is a poor quality question because such paraphrased sentences that though grammatically correct but changes the meaning completely are not asked on GMAT.

VerbalBot · Answer

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Retrospective analyses shows that pro-biotic therapeutic compounds

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Retrospective analyses shows that pro-biotic therapeutic compounds

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