听力原文:M: What a delicious meal! Waitress, can I have the bill? I'm afraid I haven't bro
W: Here it is, sir. Your bill totals 100 dollars. You can use two kinds of credit cards, American Express and State Express.
M: That is fine. I have the American Express. Here is 15 dollars; that's my tip for you.
W: Thank you very much, sir.
Where does the conversation happen probably?
A.In the post office
B.In the bank
C.In the restaurant
D.In the company