A、The summer has been unusually hot. B、The man’s air conditioner is broken. C、The man hasn’t used his air conditioner. D、The man

M: I think twice about taking a history class next year. There’s not a single good professor in the whole history department.
W: Look, that’s what you said last semester about the sociology department, and I’m very glad I didn’t pay any attention to What you said.
Q: What does the woman mean?

M: I haven’t turned on my air conditioner at all this summer.
W: That’s surprising, considering how hot it’s been lately.
Q: What does the woman find surprising?