M:Did you have to do anything special to use the rare book c

M:Did you have to do anything special to use the rare book collection.
W:I just had to tell them a day ahead of time what I needed.
Q:What did the woman probably do?
.(A) She requested materials a day in advance.
(B) She got a job in the rare-book section of the library.
(C) She called the head of the library.
(D) She arrived before the library opened.
翻译并解析为什么选a