听一段材料，回答下面几个小题。
What's the relationship between the two speakers?
A. Neighbors.
B. Doctor and patient.
C. Friends.
When did the woman cough most seriously?
A. In the morning.
B. In the afternoon.
C. Atnight.
What did the man do for the woman?
A. He examined the woman carefully.
B. He gave her some medicine and some advice as well.
C. He just told her not to worry too much.