A、The woman should have a rest once in a while. B、The woman should finish the questions as soon as possible. C、The woman should

W: You know, many countries are involved in the nuclear issue and disputes between them have been arising. So I believe that nuclear-related products are not good for the world peace.
M: Well, every thing has its pros and cons. It’s terrific to use energy carefully to produce power, but if it leaks out and threatens human health, totally dangerous.
Q: What does the man say about the nuclear issue?

W: I’m trying to finish these practice test questions but I’ve still got about so many questions to do. At this rate, I’ll be burning the midnight oil if I hope to finish.
M: Oh, that explains why you’ve been hiding in here. You probably haven’t heard that the professor postponed the exam until further notice.
Q: What does the man mean?