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# The invention of the cotton gin, being one of the most significant dev

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Manager
Joined: 23 Jul 2015
Posts: 161

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23 Aug 2017, 01:51
Ans. D

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Senior Manager
Joined: 02 Apr 2014
Posts: 476
GMAT 1: 700 Q50 V34
Re: The invention of the cotton gin, being one of the most significant dev  [#permalink]

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01 Jan 2018, 14:30
I have a small concern for choice D has redundant "previously", past perfect already implies -> previously.

But for this, choice D looks perfect.

Intern
Joined: 18 Dec 2017
Posts: 13
Re: The invention of the cotton gin, being one of the most significant dev  [#permalink]

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17 Jan 2018, 04:51
spriya wrote:
The invention of the cotton gin, being one of the most significant developments of the nineteenth century, had turned cotton cloth into an affordable commodity; it was costly before that.

(A) being one of the most significant developments of the nineteenth century, had turned cotton cloth into an affordable commodity; it was costly before that

(B) having been one of the most significant developments of the nineteenth century, turned cotton cloth into an affordable commodity, costly previously

(C) one of the most significant developments of the nineteenth century, turned cotton cloth into an affordable, however costly previously, commodity

(D) one of the most significant developments of the nineteenth century, turned cotton cloth into an affordable commodity, whereas it had previously been costly

(E) being one of the most significant developments of the nineteenth century, turned cotton cloth from a previously costly commodity to an affordable one

Source : Manhattan Prep Online Question Bank Q#8

Guys, need some help here. I've read through all comments on this questions in all forums but still can not understand why D is the right answer.

(D) one of the most significant developments of the nineteenth century, turned cotton cloth into an affordable commodity, whereas it had previously been costly

Why is "it" unambiguous in this question? I feel it can refer to cotton, commodity, or even invention of cotton gin. It's clearly not clear to me what "it" refers to...

Anyone can help me?
Re: The invention of the cotton gin, being one of the most significant dev &nbs [#permalink] 17 Jan 2018, 04:51

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# The invention of the cotton gin, being one of the most significant dev

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