A、He welcomes the woman calling any time. B、He will call the woman as often as he can. C、He is not far away if the woman wants t

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: So I guess you’ll be transferring out on Wednesday. You know I am going to miss all your silly jokes while you’re gone.
M: Well, you know, if you really do, remember I’m only a phone call away.
Q: What does the man mean?