A、Husband and wife. B、Brother and sister. C、Salesman and customer. D、Doctor and patient. D女士描述自己不舒服的症状，男士就告诉她其实她怀孕了，可见他们是医生和病人的关

W: I just made up a quart of orange juice this morning, and now I can’t find it anywhere. Do you know what happened to it?
M: Did you hear a crash earlier? That was it. I’m just as clumsy as ever.
Q: What does the man imply?

W: I’m actually fine. It’s just that I’ve been a little tired the last few days, and my stomach is kind of upset.
M: Well, that doesn’t surprise me. I have some news that you might find exciting. You’re pregnant.
Q: What’s the relationship between the woman and the man?