【单选题】

Woman: It’s awfully dark for four o’clock.Do you think it’s going to rain

Man: You’d better do something about that watch of yours. It must have stopped hours ago. Mine says seven.
Question: What conclusion can we draw from this conversation
A、Neither of their watches keeps good time.
B、The woman’s watch stopped 3 hours ago.
C、The man’s watch goes too fast.
D、It’s too dark for the woman to read her watch.