A、To see a doctor. B、To do more exercise. C、To have a sleeping pill. D、All of the above. C

M: What was the party like last night, Jane?
W: Really Fantastic l There are some interesting people there, and we have had a good time together. Why couldn’t you come?
M: Well, I had to work overtime yesterday. And when I returned home, I had a headache, so I had to go to bed straightly. But I was exhausted, so I just couldn’t get to sleep for hours.
W: What a pity. Why don’t you take a sleeping pill?
M: To speak my mind, I don’t like them. I used to take them after I had spent a long period of time working at night.
W: How many did you use to take?
M: Three every night.
W: Good heavens. Why did you take so many?
M: Because I had great pressure. The doctor said they weren’t very strong. Anyway, I used to feel awful the next morning.
W: I am sure you did.
M: The doctor said I had to be careful
W: I couldn’t agree more.
M: So I stopped drinking coffee late at night instead.