请英语高手帮帮忙，解析一下！！

Question

even though she herself has never had such an experience,it's( ) she can recognize from what has happenned to her good friend.
A that B one C such D all
选 哪个？为什么？

Answer 1

选 A. that

尽管她本人没有这样的经历，但她有。。。经历。
It is that...
是同位语从句，that后面从句解释it的内容

见类似用法的例句
If Lindsay has proven anything, it's that she can do anything she puts her mind to.

Answer 2

A
it's that 加从句。。宾语从句哦
简单的里~~~~~~