750 level, need expert : GMAT Verbal Section
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# 750 level, need expert

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05 Nov 2010, 14:04
Although improved efficiency in converting harvested trees into wood products may reduce harvest rates, it will stimulate demand by increasing supply and lowering prices, thereby boosting consumption.

A. in converting harvested trees into wood products may reduce harvest rates, it will stimulate demand by increasing supply and lowering prices, thereby boosting
B. in converting harvested trees into wood products may reduce harvest rates, demand will be stimulated because of increasing supply and lowering prices, which boost
C. of converting harvested trees into wood products may reduce harvest rates, it will stimulate demand by increasing supply and lowering prices, which boosts
D. of harvested trees being converted into wood products may reduce harvest rates, it will stimulate demand, because it will increase supply and lower prices, thereby boosting
E. when harvested trees are converted into wood products may reduce harvest rates, demand will be stimulated because of increasing supply and lowering prices, which boost
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Re: 750 level, need expert [#permalink]

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05 Nov 2010, 14:04
WHY NOT AAAAA
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Re: 750 level, need expert [#permalink]

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05 Nov 2010, 18:59
I'm not an expert but I will try to answer the question,hope I will give all the reasons right :

Answer A,C and D use "it" (it stimulate demand...) which supposedly refer to "improved efficiency" but in these answers, "it" can be wrongly referred to "harvest rates"

Answer E use "when", which only can be used for time reference (which in this answer referred to "improved efficiency)

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Re: 750 level, need expert [#permalink]

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06 Nov 2010, 00:25
tarkaston wrote:
I'm not an expert but I will try to answer the question,hope I will give all the reasons right :

Answer A,C and D use "it" (it stimulate demand...) which supposedly refer to "improved efficiency" but in these answers, "it" can be wrongly referred to "harvest rates"

Answer E use "when", which only can be used for time reference (which in this answer referred to "improved efficiency)

I don't think "it" can refer to "rates", which is plural
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Re: 750 level, need expert [#permalink]

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06 Nov 2010, 06:59
"IT" cannot refer back to efficiency (though singular).

The idea here is that although increased efficiency may reduce the rates (and thereby presumably increase demand), it is really increasing supply + falling prices which increase demand --- that's why you need a contrast marker like "although" in the sentence.

Also "in converting" is the correct idiom - so I went for B.
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Re: 750 level, need expert [#permalink]

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06 Nov 2010, 12:01
gmat1011 wrote:
"IT" cannot refer back to efficiency (though singular).

The idea here is that although increased efficiency may reduce the rates (and thereby presumably increase demand), it is really increasing supply + falling prices which increase demand --- that's why you need a contrast marker like "although" in the sentence.

Also "in converting" is the correct idiom - so I went for B.

In B, what does " which" refer to ? "which" refer to "lowering prices" or "increasing supply and lowering prices" ????
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Re: 750 level, need expert [#permalink]

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11 Nov 2010, 18:25
"which" refers to the entire clause "increasing demand and lowering prices"

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Re: 750 level, need expert [#permalink]

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16 Nov 2010, 20:34
B
A has 'it' whereas B makes a clear reference to 'demand' and 'which' refers to the entire clause.
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Re: 750 level, need expert [#permalink]

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17 Nov 2010, 08:37
No way B is the OA.
Only A makes sense
IT refers to improved efficiency. IT cannot refer to harvest rates because RATES are plural
In B: Because of -ING is not formal and Unidiomatic, if anyone has any doubts about BECAUSE OF -ING, go and look it up in the OG questions( you will not find a single correct answer with this construction; also relative pronoun separated by a comma, can't refer to compound noun because it creates ambiguity except if one is singular and the other one is plural)
Also Which can't refer to entire clause.
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Re: 750 level, need expert [#permalink]

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17 Nov 2010, 09:39
What is the source?
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Re: 750 level, need expert   [#permalink] 17 Nov 2010, 09:39
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