明白答案是B,但是选择A不对吗,不是that引导的宾语从句吗?
介词的后面可以接宾语从句的:
The new book is about how the manned spaceship was sent up into space.
The boy was interested in whatever he saw here.
Whether we can succeed depends on how well we cooperate.
He differed from his classmates in that he devoted his spare time to reading.