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: I'd like 2 tickets for tonight's show, how much is a ticket? ,F: $8.50 and there is also a service charge of $1 per ticket.
(A) M: So I need to pay $19 in total. (B) M: I need to pay $19 for service charge. (C) M: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (D) M: So I need to pay $17 for one ticket.

Ex Output:
A


Ex Input:
F: Hi, Tim. I was wondering if you'd like to drive me to the station tomorrow morning? ,M: I would be happy to drive you there. When do you need to go? ,F: I should get to the station an hour in advance. So I need to leave my house at 7:30.
(A) M: Alright, I'll drive to your home to pick you up at 7:30, I will come on time. (B) M: I didn’t hear you. Please could you tell me again? (C) M: Okay, 7:30 sounds reasonable, then we can go to the school at 8:00 together. (D) M: Alright, I'll come to your home at 8:30 and drive you to the airport.

Ex Output:
A


Ex Input:
F: What's the story about your new movie? ,M: It's about a police man. And I play the part. He has to catch the killer. The movie has some frightening scenes. But I hope the audience won't be too frightened to go to the movie theaters. ,F: Did you enjoy making the movie? We heard stories of disagreement with other actors or actresses, and with the director. ,M: I have had disagreements with the director I've worked with. We're always disagreed in a friendly way. And we have always made up our decision. But we got on very well and I hope to work with her again. I enjoy making the movie very much.
(A) F: I didn’t hear you. Please could you tell me again? (B) F: I hope that you could still get on well with the director in the future concerts. (C) F: It is sweet that you can get on well with the director of the movie. (D) F: It is reasonable for you to be frightened of some scenes of this TV show.

Ex Output:

C