英语听力有道题看不懂

题目

英语听力有道题看不懂
w:thanks a lot for offering to return these book to the library for me
m:four book!but i have four of my own to take back,too!
what does the man mean?
A he didn't expext there would be so many books.
B he can't borrow 4 books at a time
C he wasn't sure whether the woman counted all her books 理解不了 说说为什么是a

答案

W说：谢谢你帮我把我借的书还给图书馆
M说：4本书!我自己还有4本要带回去呢!
显然 M是没想到W那里会有那么多书要他帮忙拿,正是A项的意思.
B项是他不能一次借4本书,显然不对,因为说的是还书的事
C项说他不确定W是否数好她一共有多少本书,当然也不是这个意思.
如果还不明白可以再问我^-^