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Need help with 'Which'!!!

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Manager
Manager
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Status: Never ever give up on yourself.Period.
Joined: 23 Aug 2012
Posts: 138
Location: India
Concentration: Finance, Human Resources
Schools: Mays '16
GMAT 1: 570 Q47 V21
GMAT 2: 690 Q50 V33
GPA: 3.5
WE: Information Technology (Investment Banking)
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Kudos [?]: 69 [0], given: 35

Need help with 'Which'!!! [#permalink] New post 11 Oct 2012, 05:41
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

80% (01:40) correct 20% (04:03) wrong based on 5 sessions
OG12 SC
question#107
Originally developed for detecting air pollutants, a
technique called proton-induced X-ray emission, which
can quickly analyze the chemical elements in almost
any substance without destroying it,
is finding uses in
medicine, archaeology, and criminology.
(A) Originally developed for detecting air pollutants,
a technique called proton-induced X-ray
emission, which can quickly analyze
the
chemical elements in almost any substance
without destroying it,
(B) Originally developed for detecting air pollutants,
having the ability to analyze the chemical
elements in almost any substance without
destroying it, a technique called proton-induced
X-ray emission
(C) A technique originally developed for detecting
air pollutants, called proton-induced X-ray
emission, which can quickly analyze
the
chemical elements in almost any substance
without destroying it,
(D) A technique originally developed for detecting
air pollutants, called proton-induced X-ray
emission, which has the ability to analyze the
chemical elements in almost any substance
quickly and without destroying it,
(E) A technique that was originally developed for
detecting air pollutants and has the ability to
analyze the chemical elements in almost any
substance quickly and without destroying the
substance, called proton-induced X-ray emission,


OA is A.
I ain't asking why the answer is A.
In the answer explanations, the reason provided for C to be wrong says,
"Called proton-induced X-ray emission should
be placed next to a technique and should
not be set off by commas; relative clause
introduced by which incorrectly and
illogically modifies emission."

Although the sentence "called proton-induced X-ray emission, which can quickly analyze" being same in both the options, C's construction is wrong and A's construction is right. well, how's that? Could you please help me solve this discrepancy?
[Reveal] Spoiler: OA

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Re: Need help with 'Which'!!! [#permalink] New post 11 Oct 2012, 06:24
Expert's post
A. Originally developed for detecting air pollutants, a technique called proton-induced X-ray emission, which can quickly analyze

C) A technique originally developed for detecting air pollutants, called proton-induced X-ray emission, which can quickly analyze

The structure of these two sentences is vastly different from each other
A.
1. originally developed for detecting air pollutants, --- A participial modifier
2. a technique called proton-induced X-ray emission,--- the modified subject
3. which can quickly analyze – another modifier for the subject. This is a subject sandwiched by two modifiers. It is clear that the ‘which’ modifier modifies the technique. We cannot remove the noun clause because, and then the clause becomes meaningless.
C.
1. A technique originally developed for detecting air pollutants---- subject
2 called proton-induced X-ray emission,--- modifier of the subject
3. which can quickly analyze --- modifier of the modifier

Here you can see the change of the wholesome subject, part becoming the subject and the other part becoming a modifier. The essence of the sentence that the technique is called ‘proton-induced X-ray emission’ is rendered into a secondary fact. That is the reason why the specific name should not separated from the generic name.

Only this much I am able to read into GMAT psyche

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Manager
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Joined: 29 Jul 2012
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GMAT Date: 11-18-2012
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Re: Need help with 'Which'!!! [#permalink] New post 11 Oct 2012, 06:48
hey
try thursday with ron August 25 session
that is based on modifier good explanation on 'which'
also try other session based on modifier

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Re: Need help with 'Which'!!!   [#permalink] 11 Oct 2012, 06:48
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