[单项选择]

W: Can I help you
M: Yes, I’d like to read some articles that are on reserve in the library for anthropology 311.
W: Professor Gilers’s class
M: That’s right. How could you know
W: Let’s just say you are not the first person.
M: Oh, well, seeing as how I haven’t read any of them yet, it doesn’t really matter which one of them you give me first.
W: I’m afraid I can’t give you any of them at the moment. They’ve all been checked out.
M: You’re kidding all of them
W: I’ve asked professor Gilers twice already to bring in additional copies of the articles, hut no sooner do I place them on the shelves than they are gone. See that girl in the black sweater She’s been waiting for half an hour for these same articles to be returned.
M: And here I went out of my way to free the whole afternoon to read.
W: I’m sorry, but there is not a
A. That the library opens at 8 : 00.
B. That no one else has read the articles.
C. That none of the material he needs availabl