A、Spend more time outdoors. B、Take short naps in day time. C、Try to go to bed earlier. D、Stay indoors until she feels better. A女

M: Excuse me, Madam. You are not supposed to be here. This area is for airport staff only.
W: I’m sorry, I didn’t notice the sign.
Q: What do we learn from the conversation?

W: Doctor, I haven’t been able to get any sleep recently, and I’m too tired to concentrate during classes.
M: Well, you know spending too much time indoors with all that artificial lighting can do that to you. Your body loses track of whether it’s day or night.
Q: What does the doctor imply the woman should do?