A、The requirement of a class. B、The drop out of a class. C、The registration of a class. D、The schedule of a class. C对话中男士说想修那门课程

M: I’ve spent all the money this month. That’s terrible.
W: You should keep a close eye on your spending. I’m going to give you $ 20 but I want you to put it in the bank. A penny saved is a penny earned!
Q: What does the woman suggest the man do?

M: I want to get into that class, but there are so many people on the waiting list.
W: I wouldn’t say that! Many people might drop the class and then there will be some openings. You never know.
Q: What are the speakers talking about?