A substance derived from the Madagascar periwinkle, which : GMAT Sentence Correction (SC)
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# A substance derived from the Madagascar periwinkle, which

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Senior Manager
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05 Jul 2005, 12:33
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A substance derived from the Madagascar periwinkle, which has proved useful in decreasing mortality among young leukemia patients, is cultivated in China as part of a program to integrate traditional herbal medicine into a contemporary system of health care.
(A) A substance derived from the Madagascar periwinkle, which has proved useful in decreasing mortality among young leukemia patients,
(B) A derivative, which has proved useful in decreasing mortality among young leukemia patients, of the Madagascar periwinkle,
(C) A Madagascar periwinkle derivative, which has proved useful in decreasing mortality among young leukemia patients,
(D) The Madagascar periwinkle has a derivative which has proved useful in decreasing mortality among young leukemia patients, that
(E) The Madagascar periwinkle, a derivative of which has proved useful in decreasing mortality among young leukemia patients,

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Last edited by Darth_McDaddy on 06 Jul 2005, 03:17, edited 1 time in total.
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05 Jul 2005, 13:45
E should be it.

A substance derived from the Madagascar periwinkle, which has proved useful in decreasing mortality among young leukemia patients, is cultivated in China as part of a program to integrate traditional herbal medicine into a contemporary system of health care.

(A) A substance derived from the Madagascar periwinkle, which has proved useful in decreasing mortality among young leukemia patients,
- OUT substance can not be cultivated. misplaced modifier.

(B) A derivative, which has proved useful in decreasing mortality among young leukemia patients, of the Madagascar periwinkle,

- OUT, can not split the noun phrase or subject..

(C) A Madagascar periwinkle derivative, which has proved useful in decreasing mortality among young leukemia patients,

- OUT, this also changes the meaning like A does.

(D) The Madagascar periwinkle has a derivative which has proved useful in decreasing mortality among young leukemia patients, that

- OUT Restrictive clause which should always have comma before it. this choice also is weird..

(E) The Madagascar periwinkle, a derivative of which has proved useful in decreasing mortality among young leukemia patients,

- Good
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05 Jul 2005, 13:49
E - Only this choice has The Madagascar periwinkle as the subject, which follows the construction of the remaining portion of the sentence.
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06 Jul 2005, 06:32
Thank you very much for your participation Ritesh and SSAP. Your explanations are insightful. The OA is indeed E.
06 Jul 2005, 06:32
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