问题描述：
The old man had a son and two daughters,_____treated her well,____made her sad.
A.none of them; which
B.and none of whom; what
C.none of whom; which
D.and none of them; as
A.none of them; which
B.and none of whom; what
C.none of whom; which
D.and none of them; as
问题解答：
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