__ made you so angry at the meeting?

题目

__ made you so angry at the meeting?
A.why was it that
B.what did it that
C.what was it that
D.why did it that
为什么?
请详细说明,分析每个选项,

答案

what was it that就是“是什么”
made you so angry at the meeting就是“令你在会议上那么生气”
所以整个句子的意思是“到底是什么令你在会议上那么生气”
why是为什么,what did it和why did it都说不通,只有C的意思最合情理.