A、The man’s graduation. B、The couple’s engagement. C、The man’ s smoking. D、The man’s stress. C首先看题干。这一题的关键是弄清楚哪一个是主要的话题，题干已经给出暗示

M: We seem to be having this conversation over and over again.
W: You’re right.
M: Look, I know boy you feel about my smoking. You don’t have to tell me every day,
W: I’m sorry. 1 worry about you.
M: I know. But work and school have me so Stressed out Maybe I’ll be able to quit after I graduate.
W: Let’s be honest. There’s always going to be a reason. After you graduate, it’s going to be hard to find a job, then there will be the stress from just starting a job, then.
M: Okay, 1 get your point. It’ s just so hard. You don’ t really  understand because you never smoke.
W: You need some help. Why don’t you go to a doctor?
M: You mean a psychiatrist.
W: No, I don’t mean a general practitioner, maybe you can get a patch, or some pills, well, I don’t know, something to help you with the withdrawal. Because that’s what it is.
M: Really, I believe I can’t quit on my own. But I’ll think about it. I will.
W: All right. I won’t mention it for a week. Then I want to know your decision. Because if you don’ t get some help, I need to rethink our plans.
M: You mean you’ d break our engagement over this? I can’t believe it!
W: I don’t know. I love you, but I’m not sure I could accept  everything that goes along with the smoking.