M: Your bill comes to $35. ,F: That can't be right. I think you forgot to charge us for dessert. I think it was 4 bucks. ,M: Ah, so I did. Tell you what, it's provided free by the restaurant.
(A) F: $35? Here you are. (B) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (C) F: Oh, thank you, I will pay $35 for you, and dessert is included. (D) F: Thank you very much, here is $31.
A