Sentence Correction

Some patients who do not respond therapies of depression may simply have received inadequate treatment, having, for example been prescribed a drug as a dosage too low to be effective or having been taken off a drug too soon.

A having, for example been prescribed a drug as a dosage too low to be effective or having been
B having, for example, a drug prescription that was ineffective because the dosage was too low, or being
C as, for example, having too low of a dosage of prescribed drug for it to be effective, or being
D when they have, for example, been prescribed too low a drug dosage for it to be effective, or were
E for example, when they have a drug prescription with a dosage too low to be effective, or been

I have read somewhere that having been is generally wrong on gmat ... however, the OA is A

Please explain your answers.

Having, being, are considered almost incorrect in GMAT, however there are certain exceptions too(even OG provide those exceptions)

The question test parallelsim in present participle(having). I think there should be comma before been to make it completely correct.

Some patients who do not respond therapies of depression may simply have received inadequate treatment, having, for example been prescribed a drug as a dosage too low to be effective or having been taken off a drug too soon.

A having, for example been prescribed a drug as a dosage too low to be effective or having been-->Seems best of all
B having, for example, a drug prescription that was ineffective because the dosage was too low, or being -->Incorrect llm
C as, for example, having too low of a dosage of prescribed drug for it to be effective, or being-->'it' has ambigous refernce
D when they have, for example, been prescribed too low a drug dosage for it to be effective, or were -->everything correct with this one, apart from 'were'
E for example, when they have a drug prescription with a dosage too low to be effective, or been -->Incorrect llm.

I still feel there should be comma for A to be correct. if its not then A & D have a close call.

I feel D better than A.

A has a couple of problems.

comma is missing after for example
drug as a dosage looks awkward..drug dosage as in D is better.

D looks fine.

2 parallel elements

when they have been prescribed too low a drug dosage for it to be effective

when they were taken off a drug too soon.

Pls let me know your opinion.

CrazyGmatter wrote:I feel D better than A.

A has a couple of problems.

comma is missing after for example
drug as a dosage looks awkward..drug dosage as in D is better.

D looks fine.

2 parallel elements

when they have been prescribed too low a drug dosage for it to be effective

when they were taken off a drug too soon.

Pls let me know your opinion.

'When they have' =/= 'when they were' : To me, there doesn't seem to any requirement for tense change by using 'were'
Though A has comma error, I am just assuming GMAT doesn't focus much on comma and hence going for A.

what do you say?

gmatv09 wrote:Some patients who do not respond therapies of depression may simply have received inadequate treatment, having, for example been prescribed a drug as a dosage too low to be effective or having been taken off a drug too soon.

A having, for example been prescribed a drug as a dosage too low to be effective or having been
B having, for example, a drug prescription that was ineffective because the dosage was too low, or being
C as, for example, having too low of a dosage of prescribed drug for it to be effective, or being
D when they have, for example, been prescribed too low a drug dosage for it to be effective, or were
E for example, when they have a drug prescription with a dosage too low to be effective, or been

I have read somewhere that having been is generally wrong on gmat ... however, the OA is A

Please explain your answers.

No HAVING BEEN is not WRONG

refer here please

https://www.beatthegmat.com/having-been- ... 49689.html


PLEASE PLEASE CITE SOURCES WHILE POSTING

Final solution at one place:

Important: The purpose of this post (and all the other posts by me) is to give a complete solution to all GMAT-Prep Verbal questions at one place. Sometimes students have to wade through dozens of posts to get to the final answer. My posts will give one complete and crisp solution required to arrive at the correct answer by eliminating the wrong ones. Some of the content in these posts may have been taken from various other sources (discussion forums).

Some patients who do not respond to therapies for depression may simply have received inadequate treatment, having, for example, been prescribed a drug at a dosage too low to be effective or having been taken off a drug too soon.
(A) having, for example, been prescribed a drug at a dosage too low to be effective or having been
(B) having, for example, a drug prescription that was ineffective because the dosage was too low, or being
(C) as, for example, having too low of a dosage of a prescribed drug for it to be effective, or being
(D) when they have, for example, been prescribed too low a drug dosage for it to be effective, or were
(E) for example, when they have a drug prescription with a dosage too low to be effective, or been

The best way to attack this problem is to remove 'for example' from each of the choices.

A. having been prescribed a drug at a dosage too low to be effective or having been
B. having a drug prescription that was ineffective because the dosage was too low, or being
C. as having too low of a dosage of a prescribed drug for it to be effective, or being
D. when they have been prescribed too low a drug dosage for it to be effective, or were
E. when they have a drug prescription with a dosage too low to be effective, or been

A is parallel 'having been || having been' ... the connector word is 'or' ... as we are joining two similar ideas (and only two ideas), we should not use a comma. This alone is sufficient to eliminate B, C, D, and E.

In B, 'having a drug prescription (refers to patients) can't be parallel to being taken off (refers to a doctor, possibly) ... as the subjects are different, the two are not parallel.

In C, 'having too low of a dosage (refers to patients) can't be parallel to being taken off (refers to a doctor, possibly) ... as the subjects are different, the two words are not parallel.

D is not parallel ('have been' is not parallel to 'were')

E is not parallel ('have a prescription' is not parallel to 'been taken off')

Correct: A