Definition: In this task you are given a small conversation between two persons and 4 options on how the conversation should continue. Your job is to choose the most reasonable option. The conversation and the options are separated by a newline character. Each dialogue in the conversation are separated by a comma. F and M indicate female and male, respectively.
Input: M: What is a reasonable tip to leave to the waitress? ,F: It's up to you. I usually leave 20% of the dinner price.
(A) M: Do you know how to reduce the price? (B) M: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (C) M: Why do you think the reasonable tip leaving to the waitress is 20% of the dinner price? (D) M: Do you know how to order a dinner?

C