单项选择题

[听力原文] 6-8
W: Oh ,look at these two watches ,aren’t they lovely
M: Which one do you like
W: They are both very nice. I think I like...
M: Do you like this one
W: Mm, yes, but I think I like that one better. It’s made of gold, isn’t it And look at the rings! Now, they’re lovely.
M: Mm, I don’t know. I think I like those better, over there, the plain gold ones.
W: But these are gold, they are white gold.
M: Look, which one do you like
W: I think I like that one. Do you want to buy it for me

What’s the probable relationship between the two speakers（）

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