A、They become nervous more easily than women do. B、They’re uncomfortable performing in front of adults. C、They don’t respond to

M: Hi, Jessica. What’s up?
W: Oh, hi, I just got out of my history class. I had to give a presentation.
M: How did it go?
W: Terrible. I’m sure I made a fool of myself.
M: Why? Weren’t you prepared?
W: No, it was not that. (19) I just get so embarrassed and nervous whenever I have to speak in front of a group of people. I stand up and my face gets red and that makes me even more nervous.
M: It’s not so bad to be nervous.
W: But it happens all the time. If the professor asks a question and I know the answer, I will be nervous like crazy if he calls on me. Doesn’t that ever happen to you?
M: No, not really. (20) Maybe you should just try to forget about the people. Look at something else in the room like the exit sign.
W: I guess I could try that but I doubt it’ll help.
M: You know, we talked about it in psychology class. Being nervous, sometimes, is more or less a learned behavior.
W: What do you mean?
M: (21) Oh, children hardly ever become nervous at all. And among adults, supposedly, women become nervous more than men.
W: I wonder why?
M: I don’t know, but I have a friend at high school. It was really easy to make him nervous. He turned red whenever a waitress would ask him for his order.
W: I’m not that bad. Well, I’ve got to get going for my next class. I’ll talk to you later.