We need a chairman _______.

问题描述:

We need a chairman _______.
a、for whom everyone has confidence b、 in whom everyone has confidence
c、 who everyone has confidence of d、 whom everyone has confidence on.
选哪个?为什么?请翻译

选b,这里有一个词组have confidence in somebody 对某人有信心.
这里是一个定语从句,in whom everyone has confidence修饰前面的chairman.
本句意思为我们需要一个每个人都对他有信心的主席.