A、She found she wasn’t registered in Chemistry 302A. B、She found she was registered in Chemistry 302B. C、She was unsure which cl

W: Hello. Is this the registration office?
M: Yes. This is Herbert speaking. How can I help you?
W: Well, I have a slight problem here. I have been in Chemistry 302B class for a month, and today
Prof. Smith told me I wasn’t registered in his latest class list. I thought all the while I was registered in his class and this really comes as a surprise.
M: Well, why don’t you give me your student ID and I’ll just check to see if you are officially registered.
W: 39241.
M: Just a minute. And you are Alice Jones, right?
W: Yes, that’s me.
M: Alice, the computer shows that you are registered in Chemistry 302A and that’s Dr. Nelson’s class. Perhaps you have mixed up the two.
W: Oh no, I thought I’d made a switch from Nelson to Smith. How did this confusion occur? I dropped Nelson’s class and switched to Smith’s in the first week. I still have the add/drop form with me.
M: In that case, I suggest you come to the registration office with the add/drop form and we’ll try to sort it out for you. I don’t rule out there could have been a mistake that occurred during the add/drop process.
W: I’ll be there first thing in the morning to sort out this mess. You know, I wouldn’t want to switch professors when I’m now half way through.
M: I can understand that. See you tomorrow.
23. Why is the woman so surprised?
24. What does the man suggest the woman do?
25. Why is the woman urgent to have this problem solved?