51. A new study suggests that the conversational pace of everyday life may be so briskit hampers the ability of some children for distinguishing discrete sounds and words and, the result is, to makesense of speech.
(A) it hampers the ability of some children for distinguishing discrete sounds and words and, the result is, to make
(B) that it hampers the ability of some children to distinguish discrete sounds and words and, as a result, to make
(C) that it hampers the ability of some children to distinguish discrete sounds and words and, the result of this, they are unable to make
(D) that it hampers the ability of some children to distinguish discrete sounds and words, and results in not making
(E) as to hamper the ability of some children for distinguishing discrete sounds and words, resulting in being unable to make
答案选B，但是我有个疑问就是在D选项中，把 it hampers。。。。。和 results in 看成平行为什么不对？看了答案的解释也不是很明白
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