A、Cut off her telephone. B、Blow a whistle into the receiver. C、Keep a record of the annoyance calls. D、Report her problem to the

W: I just want to eat out; I don’t think we have enough time to make dinner.
M: Most of the restaurants put too much oil to the meal in order to make the meals taste delicious; actually it’s bad for our health.
Q: What does the man mean?

W: I’ve been having annoyance calls for two weeks. When I answer the phone, the other party hangs up without saying anything. I’ve tried everything including blowing a whistle into the receiver.
M: Beginning today, we want you to keep a record of the time each call occurs. From this chart, we can get information to help us trace the calls.
Q: What does the man suggest the woman do?