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: I've been looking all over for you! Where did you go? Why didn't you answer your phone? ,F: I was looking for some books in the library. I had to turn my phone off there.
(A) M: You lost your phone! So bad! (B) M: I’m sorry, I don’t understand. Could you say it again? (C) M: You were not allowed to use the phone at that time because you were looking for some books in the bookstore, right? (D) M: You were not allowed to use the phone at that time because you were looking for some books in the library, right?

D