A federal advisory panel proposes expanding a national computerized file to permit law-enforcement agencies to track people under criminal investigation but have not yet been charged.

(A) under criminal investigation but

(B) under criminal investigation, but who

(C) under criminal investigation, but they

(D) who are under criminal investigation, but they

(E) who are under criminal investigation but


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A federal advisory panel proposes expanding a national computerized file to permit law-enforcement agencies to track people under criminal investigation but have not yet been charged.

A. under criminal investigation but --> not parallel with "have not yet been charged "

B. under criminal investigation, but who --> same as A

C. under criminal investigation, but they --> same as A

D. who are under criminal investigation, but they --> not parallel

E. who are under criminal investigation but --> correct

I think E is correct.

Who - is required after "people" as an essential modifier, since it is necessary to emphasize that it is a specific set of people "under criminal investigation"

Who are....but have... seems parallel.

E looks good.

Thanks,
GyM

Hi folks!

As you can see, the text of the original NYT article is different from GMAT OA. This is one more proof that if you want to learn GMAT's SC logic, don't read NYT, instead read WSJ, especially headline articles, because the rest have lower quality too.
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ammuseeru

0:30 solution, although as in quant you really need to practice to train your mind
to understand small chunks of the sentence as you read along, and then separate different clauses.

A federal advisory panel proposes

expanding a national computerized file to permit law-enforcement agencies
to track people under criminal investigation
but have not yet been charged.

Intended meaning:
FA panel proposes to expand something to do a particular task.
something: a national computerized file
task: permit law-enforcement agencies

What will these agencies do?
Track people under criminal investigation but have not yet been charged.

Key parallel marker BUT. We are talking about two qualities of people:
1. They are tracked under criminal investigation
2. They have not been charged in past.

Could you see how parallel marker correctly connects both verbs (tracked and charged)
with subject people.

There is no need for introducing a separate subject they as in (D)

As generis pointed out here, make pronoun ambiguity your last hope when you have better chances
striking off answer choices with other rules .
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