A、An analysis of early presidential elections. B、A comparison of political journals. C、The use of computers on calculating elect

M: Excuse me, I wonder if you could help me. The reference librarian at the main library suggested I come here.
W: What can I do for you?
M: Well, (13) I’m working on a term paper about the influence of television on recent United States presidential elections. (12)I found a few of the books I need at the main library, but I was told that the library here at the graduate school had more specialized material.
W: Of course it depends on what you want, but we do subscribe to a large number of journals. You’ll probably have to do a lot of digging. It may take some time, (14) but I’m sure you’ll be able to find many articles relevant to your topic. We also have quite a few newspapers on microfilm.
M: What if I run across a reference that isn’t available here?
W: (15) You can request any outside material just by typing your request into the computer.
M: (15) You mean you can get material from other universities?
W: (15) Not only from other universities, but from virtually any public or private library in the United States. The only limitation is that outside material cannot be checked out.
M: Oh... I see. That’s kind of convenient. Thanks a lot!
W: My pleasure.
　　12. Why does the man come to the graduate school library?
　　13. What is the topic of the man’s term paper?
　　14. What does the librarian say about the topic of the man’s term paper?
　　15. What might the man have to do if he requests material from another library?