A、She is unusually well prepared. B、She wants to take an easy course. C、She needs additional credits in the subject. D、She wants

M: Come in, come in! What can I do for you?
W: Prof. Donner, are you giving your Advanced Geology course again next semester?
M: Yes, I’m planning on it.
W: I wonder if I could enroll in it. I know it’s a graduate course and I’m only a junior, but...
M: Aren’t you a bit young? I’ve allowed qualified seniors to take the course and they usually have a hard time keeping up.
W: I know, but the geology of the American West is my favorite interest and I’ve done a lot of reading in the field. Last semester I took Prof. Burman’s course and I didn’t find it nearly challenging enough.
M: I see. You certainly aren’t one of those students who are out for easy grades.
W: I should say not. I really want to learn something.
M: Well, I’ll speak to Prof. Burman, if he thinks you’re ready, I’ll let you enroll.
W: Oh, thanks. Professor Donner, that’s really very nice of you.
Questions 16-20 are based on the conversation you have just heard.
16. Why did the woman talk to the professor?
17. What is the professor’s first reply to the woman’s request?
18. What does the woman say to persuade the professor to help her?
19. What does the woman say about the geology course she had already taken?
20. What does the professor promise to do?