In this task, you will be shown a conversation. You need to write a question with three choices for the conversation. Your question should be answerable based on the conversation and only have one correct answer. Note that you don't need to answer your question. "W" and "M" in the conversations stand for "woman" and "man".

W: Now then, Mr. James, what seems to be the matter? M: I just can't sleep, doctor. W: I see. And how long have you had this problem? M: Oh, for about two months now. W: And how about your work? M: Well, I have been working a lot lately-10 to 11 hours a day. W: Maybe you should take a holiday and just relax for a while. M: Well, I can't right now. We're in middle of some important business. W: So,you're worried about it? M: Yeah, I guess so. W: Well, maybe you should consider a job change. M: Yeah, well, it's pretty hard to find a new job at my age, you know.
From what time could the man not fall sleep at night? (A) Two weeks ago. (B) Two months ago. (C) Three months ago.