headset telephones : GMAT Verbal Section
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Manager
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10 Jul 2005, 11:11
Unlike the use of headset telephones, which allow drivers to keep their hands on the wheel, all drivers are prohibited from using portable phones while driving.
A.Unlike the use of headset telephones, which allow drivers to keep their hands on the wheel
B.Besides using headset telephones, which allow drivers to keep their hands on the wheel
C.Unless headset telephones, which allow drivers to keep their hands on the wheel, are used
D.Other than the use of headset telephones, which allows drivers to keep their hands on the wheel
E.Aside from using headset telephones which allow drivers to keep their hands on the wheel

OA will follow.
If you have any questions
New!
Director
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10 Jul 2005, 11:55
I will go with C
Director
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10 Jul 2005, 12:04
C is fine.

Rest all are ugly.

Wrong comparison in A and D
E has the concept all wrong. Non restrictive clause has been made restrictive and the meaning is different.

B, besides is unable to make a comparison or contrast.
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11 Jul 2005, 00:26
I'll pick D
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11 Jul 2005, 04:05
I was trying to choose between B and C, but B seems to be more awkward. My choice is C
SVP
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11 Jul 2005, 05:37
i pick C..
Manager
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11 Jul 2005, 06:24
tinyseal wrote:
C.Unless headset telephones, which allow drivers to keep their hands on the wheel, are used

OA is indeed C.

I thought "which" clause can only modify a singular noun. Only "that" clause can modify plural noun. However, this case does not follow the rule.

Can anyone explain the usage of "which" clause vs "that" clause?
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02 Sep 2007, 13:19
tinyseal wrote:
tinyseal wrote:
C.Unless headset telephones, which allow drivers to keep their hands on the wheel, are used

OA is indeed C.

I thought "which" clause can only modify a singular noun. Only "that" clause can modify plural noun. However, this case does not follow the rule.

Can anyone explain the usage of "which" clause vs "that" clause?

which is modifying the gerund phrase, which acts as a noun.

Noun / Gerund phrase + is fun.
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02 Sep 2007, 13:38
I will pick C

which is used to provide "extra" information.
That is used to provide information which is essential for a sentence
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22 May 2010, 04:38
C. Not the best written sentence, but the best among the choices.
A, B, D and E make a wrong comparison between 'telephones' and 'drivers'.
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22 Jan 2011, 07:39
C is the best
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27 Jan 2011, 13:30
C is ugly!
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