天山4-18讨论区没有

我真是笨死了。为什么我就觉得不对呢？

为什么是B呢？A new study suggests that the conversational pace of everyday life may be so brisk it hampers the ability of some children for distinguishing discrete sounds and words and, the results is,  to make sense of speech.

B,that it hampers the ability of some children to distinguish discrete sounds and words and, as a results,  to make

为什么不是D呢？为什么是make sense ??

D,that it hampers the ability of some children to distinguish discrete sounds and words ,and  results in not making sense of speech.

呵呵，同笨同笨，我也不懂呢，怎么也不懂！