M: Excuse me. What's the postage on this letter to New York, please? W: How would you like to send it? M: By registered airmail. W: Eighty cents, please. And please write down the postal code in the mailing address. Anything else? M: Yes. I'd like 6 postcards and 10 fifty-cent stamps, please. W: All right. Here you are. M: And this package is for London. Will you weigh it for me? W: Yes, of course. This package is 10 grams overweight. You'll have to pay 50 cents extra for the overweight., Question: Where are the speakers? (A) In a bank. (B) In a bookshop. (C) In a post office.
(C) In a post office.