M: You've reached the number of the student registration office, if you want to reach the admissions office, press 1. For general information, press 2. Good morning, admissions office. Can I help you? ,F: Yes, my name is Terry and I'm interested in finding out whether history 107 is full yet. ,M: Do you know the official registration code for that class? ,F: It is HIS107BC3. ,M: Um......It says that the class is full you could check back in a couple of weeks. Some places will probably open up by that time. There's a waiting list, and that means that you'd have to wait for your turn to come up.
(A) F: It seems that History 107 is so difficult that few people would like to choose it. (B) F: Wow, I never thought History 107 could be so popular. (C) F: History 107 is indeed popular! I'm really lucky to get the last vacancy. (D) F: I didn’t hear you. Please could you tell me again?
B