A、Husband and wife. B、Dentist and patient. C、Lawyer and client. D、Teacher and student. B男士问对方感觉哪儿不舒服；女士述说自己下腭上的一颗牙齿松动，而且疼得整夜都睡不着

M: Sheila, you’re one of the speakers for the English Speaking Contest to be held in June, aren’t you?
W: That’s what I’m preparing for.
Q: What can we conclude about the woman?

M: Now, what seems to be bothering you, Mrs. Coleman?
W: One of my teeth on the lower jaw is loose and aching again. The toothache keeps me awake all night.
Q: What is the probable relationship between the man and the woman?