Although no proof yet exists of electromagnetic fields : GMAT Sentence Correction (SC)
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# Although no proof yet exists of electromagnetic fields

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Senior Manager
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Although no proof yet exists of electromagnetic fields [#permalink]

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06 Jul 2007, 07:56
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953. Although no proof yet exists of electromagnetic fields generated by household appliances posing any health threat, mounting scientific evidence has convinced many experts that there is cause for concern.

(A) of electromagnetic fields generated by household appliances posing any health threat
(B) of electromagnetic fields generated by household appliances that pose any threat to health
(C) that electromagnetic fields generated by household appliances pose any threat to health
(D) that poses any threat to health from electromagnetic fields generated by household appliances
(E) for any health threat posed by electromagnetic fields generated by household appliances
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06 Jul 2007, 08:26
C.
Clause is necessary. C is direct and clear. D lacks noun in clause.
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06 Jul 2007, 09:09
D changes the meaning by saying that proof poses a threat.
E is passive.
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07 Jul 2007, 09:06
The OA is C.

Just wondering, is 'exist of' ever correct?
07 Jul 2007, 09:06
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