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: F: We're going to listen to a lecture about environmental protection. ,M: Really? I thought we'd go to see an exhibition.
(A) F: It's a lecture about environmental protection. So let's go to see the exhibition. (B) F: It's a lecture about air pollution. So let's go to see the exhibition. (C) F: It's a lecture about exhibition. (D) F: I’m sorry, I don’t understand. Could you say it again?

A