Correct ans A).
B)"A number of linguists contend" should be followed by the contention . Here it is followed by some story about 5 billion....yawn. Eliminated.
C)The contention is referred incorrectly to "World's 5 billion people speaking thousands of languages". Eliminated.
D)the connector "That" is missing. Too wordy an awkward. Think the tone gets passive, not sure though.
E) The "ability" cannot be the subject of contention

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Posted by sanand to 1000SC at 6/03/2006 02:26:58 AM