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.

[Q]: F: I heard you went to Las Vegas. What did you do? ,M: Well, we went shopping a lot. We went and visited the Hoover Dam. ,F: That's a lot of water. Did you go swimming? ,M: No, it's not warm enough for that.
(A) F: Why didn't you go shopping in Las Vegas? (B) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (C) F: You failed to swim in Hoover Dam in Las Vegas but you swam in somewhere else there, right? (D) F: Why didn't you visit the Hoover Dam in Las Vegas?
[A]: B


[Q]: F: Tom, if you don't mind spending the day with 2 girls, you can come with us to the National Park. ,M: I'd love to. Thanks.
(A) F: Great, so we'll be three together. (B) F: That's two people going to the National Park instead of just me. (C) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (D) F: Great. This is the first time that four of us are going to the National Park together.
[A]: A


[Q]: M: Hi, what will you do with your broken cellphone? ,F: I'll throw it away. I don't need it anymore. ,M: Don't throw away electronic waste carelessly. It's dangerous to the environment. ,F: You mean I should keep these useless things at home. ,M: I'm not saying that. But do you know that every year a lot of useless computers and cellphones pollute the soil?
(A) F: Excuse me, could you repeat the question? (B) F: I didn't know much about the electronic waste. How should I deal with it? (C) F: Yes, soil pollution is too serious, so you should not throw your cellphone in the land. (D) F: You are right, recycling is good. That's why I'm recycling all the broken phones.
[A]:
B