A、He is a lawyer. B、He is a doctor. C、He is a travel agent. D、He is an immigration officer. B根据对话中“pain”可知，这是一个医患诊疗的过程，故该男士的职业是医

W: I don’t see much of you these days, where have you been?
M: I am working on a big project. I don’t even have time to breathe.
Q: what can we learn from the conversation?

M: Well, tell me about your trouble.
W: Two hours after eating, I get pain, and then I feel it.
Q: What would the man do?