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.

Ex Input:
M: Hey, Sarah. This year I'm going to the rock festival for all three days. ,F: Oh, lucky you, Leo. Are you going with your cousin again? ,M: Not this year. My brother has promised at take me there now. My sister is too busy with her college work.
(A) F: So your sister got time to take you there. (B) F: So your brother will take you to the concert this year. (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: So your brother will take you there this year.

Ex Output:
D


Ex Input:
M: Hello, could I speak to Selina, please? ,F: Speaking. Is that you, Tom? What's wrong with your voice? I hardly recognize your voice. ,M: I practice singing last night. I guess I practiced too hard. You know, it lasted from 7:00 to 9:00 last night. ,F: You must have hurt your voice. So what can I do for you? ,M: Well, Bob and his girlfriend have returned from China. Jenny and I invited them to come over and have dinner with us tonight. I've just opened the box of glasses and there is one missing. Then I remembered my son broke one about 2 months ago. I remember we bought the glasses together and you bought the same set of glasses. So can I borrow a glass from you?
(A) F: Although Jenny is your neighbor, we didn't go to buy glasses together, did you? (B) F: I am really sorry, I did not catch that. Would you slow down, please? (C) F: Although Jenny is your friend, why did you buy the glasses together? (D) F: I didn't even know Jenny was your wife.

Ex Output:
D


Ex Input:
F: Hi, Harry. You traveled a lot recently. When did you come back to China? ,M: I just came back from France this morning. I stayed there for half a month. But before that, I traveled in Italy for 10 days and I am flying to Japan in 2 days.
(A) F: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (B) F: So although you are in China now, you will fly to Japan in 10 days, right? (C) F: Did you get back to Italy from America this morning? (D) F: Anyway, I'm glad you're in China now.

Ex Output:

D