A、She has to change the time for the trip. B、She hasn’t decided where to go next month. C、She can’t afford the time for the trip

W: This school is lucky to have a teacher as good as Prof. Helen Johnson.
M: She is one in a million. We’ve all benefited from what she imparted to us. I wish I could have taken more courses she teaches.
Q: What does the man mean?

M: You’re going to make a trip to San Francisco, aren’t you?
W: Yes. But I haven’t got the plane ticket yet. I’m thinking of postponing the trip to next month since this is the busiest month for the airlines.
Q: What do we know about the woman from this conversation?