英语中强调句 强调人who可以和that互换吗

Question

Mike said it was the tall boy standing under the tree over there___gave him the sweet.
A.which B.where C.that D.whom
这题选什么？

Answer 1

可以。

It is the professor who told us the story. = It is the professor that told us the story.

问题，选C

但一般限定性定语从句应当紧跟被修饰的词语。这句子比较特殊。