A、They are at Michael’s. B、They will treat Michael. C、They are going to Michael’s. D、They will go home by subway. A选项中的They，at/a

M: Jane, I’m having difficulty with all the theoretic stuff we are getting in our computer course.
W: Oh, that part I understand. What I can’t figure out is how to make it work in our program.
Q: What is the woman’s problem?

W: We should probably hit the road. It’s going to take us two hours to drive home. Otherwise, we couln’t make it before midnight.
M: You’re right. I’ll say goodbye to Michael and thank him for the treat.
Q: What can we infer about the two speakers from the conversation?