【正确答案】 B

【答案解析】[听力原文]19-21
M: Good morning, madam. Is there anything I can do for you?
W: I suppose I'd like to buy something China made as presents for my husband and daughter.
M: What about some smart ties for your husband?
W: Oh, no. I've bought one for him as birthday present last month. So I don't want to buy more.
M: What about this nice fine cotton short sleeve T-shirt?
W: That's a good idea. Could you show me some samples?
M: It's my pleasure. They're of good quality.
W: I prefer light color, medium size.
M: How about this light blue one?
W: It's really nice. How much does it cost?
M: Fifteen dollars.
W: OK! I'll take it. Could you recommend something for my daughter?
M: We've got very beautiful silk products, woolen sweaters and...
W: The woolen sweaters are not on season because it is getting warm. How much is that pink pajamas worth? It looks fine.
M: It's fifty dollars.
W: That's too expensive. I wonder if the silk piece's color will go off.
M: As a matter of fact, all the materials here are colorfast. If you are not satisfied with the price, you can try some silk scarf. It is just 20 dollars each.
W: All right. I will buy a light blue T-shirt, and a pink silk scarf.
M: That amounts to 35 dollars. Please wash the silk in lukewarm soap water and rinse well. Don't rub or wring it.
W: Here is the money. Thank you.
M: You're welcome.
19. What is the most probable relationship between the two speakers?