A、Pessimistic. B、Optimistic. C、Nervous. D、Indifferent. B信息明示题。对话中男士明确提到他对老年人的未来持乐观态度，之后还劝女士不要过于担心和紧张。

M: Hello, Jenny, you look so tired. How did you spend your weekend?
W: Oh, I went to visit my grandparents yesterday.
M: Really? It’d been a long time since you saw them last time, hadn’t it?
W: Yes, they’re weaker and more fragile than what I saw them last time.
M: They’re well pensioned off, aren’t they?
W: Yes, but money isn’t everything.(19)I’m pessimistic about the future of the aged. I don’t think they will be taken good care of by their families or the community. They may often feel lonely.
M: I think the opposite is true.(20)I am optimistic about the future of the aged. I am confident that the aged in our country are and will be well attended. It is certain that they will live a happy life.
W: But, you know, the aged have very special needs and they may have difficulty in health care, nutrition and housing, etc.
M: You are right in a way. But in general, I don’t think you need to worry about that. There are many rest homes for them.
W: There is another problem. The family planning policy encourages each couple to have only one child. This means a middle-aged couple will have to support four old people and one child. It is really a heavy burden for them, isn’t it?
M: Yes, but don’t be so nervous about it. The government on all levels has been sparing no effort to improve the current situation.
W: I hope so.
19. What does the woman think of the aged in the future?
20. What’s the man’s attitude toward the aging problem?
21. What are the two speakers mainly talking about?