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Source: Beat The GMAT — Sentence Correction |
- Jim@Grockit
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Only A and C are possible; the others insert it for the plural mountains. I'd have gone with A for clarity; naming in C lacks the clear grammatical reference that who gives.
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karanrulz4ever
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If I am not mistaken,this is the 1st problem of OG 12th edition. The answer is A. Check the book for the best possible explanation.

















