I sent invitation to 20 people,___ came.

题目

I sent invitation to 20 people,___ came.
A.of whom only 10 of these B.only 10 of these who
C.of whom only 10 D.only 10 who
Which one/ Whu?

答案

C.这种题一般可以还原成简单句比较好选择：I sent invitation to 20 people.Only 10 of the 20 people came.如果是A的话就不对,Only 10 of these of the 20 people came.这不就重复了吗