听力原文：M: Susan, I need your help this weekend.
W: What is it, John？ Another term paper？
M: No, no. This is easy compared to that. My cousin is coming on Thursday. She has an interview at the college and I promised my aunt to look after her. I'm going to go with her to take the interview on Friday, but on Saturday I'll be on duty at the library all day and can't get out of it. I was wondering if you could show her around during the day and maybe we can meet for dinner that night.
W: Sure. I don't have any plans. What is she interested in？
M: Actually I haven't seen her for three years. She lives so far away. But this will be her first time on a college campus. She is still in high school. So she will probably enjoy anything on campus.
W: Well, it seems that a music festival will be celebrated in the hall that day. Maybe she will be interested.
M: Well, I hope so. I'll take her to your place on the way to work, around eleven. If there is a blizzard, I'll give you a call and see if we can figure something else out.
W: Sounds good. In the meantime I'll keep Saturday open. We can get in touch on Friday night when we have a better idea of the forecast.
M: I hope this works out. I feel kind of responsible. She won't know her way around. I want her to have a good time. Anyway I really appreciate your help. I owe you a favor.
W: No problem. I'll talk to you tomorrow.
(29)

A. John and his cousin.
B. Susan.
C. John's cousin.
D. Susan's cousin.