A、It’s ugly. B、It’s expensive. C、It does harm to the skin. D、It may drop off his head anytime. Dtoupee的意思是“男子假发”。当女士建议男士戴假发时，男士说

Jane: Ron, what are you doing?
Ron: Ah, nothing. I’m just looking up some information on the Internet.
Jane: Like what? Let me see.
Ron: No, no, it’s okay. I mean, you know...
Jane: Baldness? What are you looking that up for? [Well, you know ... ] I...I mean, you’re not that bad off.
Ron: Ah, there you go. Bringing it up again!
Jane: No. I mean it. You look great! Honestly, it’s net that bad.
Ron: Hey, I get enough of it from friends, and the people at work, and now from you!
Jane: Well, maybe you could wear a toupee? I think you’d look great.
Ron: Oh no. And have it slip off my head on to my date’s dinner plate as I lean over to kiss her? Uh-uh.
Jane: Well, have you ever thought about seeking medical advice? There are new advances in medicines that not only retard hair loss, but help regenerate new growth.
Ron: Ah, I still don’t give much credibility to medical treatment to prevent permanent hair loss.
Jane: Well, what about accepting the fact that you’re just losing your hair?
Ron: I just can’t give up hope. I know appearances shouldn’t matter, but I don’t know. I just feel that women just avoid me.
Jane: Come on. You can’t be serious.
Ron: No, really. I’ve seen it many times. It just, I don’t know...
Question : What is the problem the man is suffering from?

Why doesn’t the man like the idea of wearing a toupee?