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:
F: How can you be shouting at your grandpa? You can't be so rude! ,M: No, I don't want to be rude to him, but I had to shout so that he could hear me. My grandpa has something wrong with his ears. He doesn't hear well. ,F: I'm sorry. I misunderstood you. Your grandpa looks kind. ,M: Yes, he is kind to everybody in our small town. So we all respect him.
(A) F: I didn't hear you. Please could you tell me again? (B) F: Of course. Everybody will respect someone who is kind to other people. (C) F: Though your grandpa looks fierce, he earns respect by helping others. (D) F: He's respected for being the oldest man in town, so you never shout at him.

Ex Output:
B

Ex Input:
M: Ella, what languages do you speak? ,F: As you know Korean is my first language. I also speak English and Chinese. How about you? What languages do you speak? ,M: English, German and French. While I was studying in Europe, I used French in German all the time. Now, my French is not so good but I do keep my German up.
(A) F: My mother tongue is Korean, but I can't speak any other language. (B) F: I'm sorry, I don't understand. Could you say it again? (C) F: We can both speak English. English is my mother tongue. (D) F: My native language is Chinese, but I can't speak English.

Ex Output:
A

Ex Input:
F: Would you like some tea or coffee, dear? ,M: No, thanks. It's very late. They will keep me awake the whole night. ,F: Then what about some water? ,M: Yes, please. ,F: Don't work too late since you are not in good health. You should be careful with your health. ,M: I know, but I'll have to finish these reports tonight. Our manager will use them at the meeting tomorrow morning.
(A) F: Really? You'll have to finish these reports tomorrow? Don't worry. You are my honor customer, and I will offer more service for you. (B) F: Really? You'll have to finish these reports tonight? Oh, honey, as your wife, I really think you should be careful with your health. (C) F: Your father will use them at the meeting tomorrow morning? Oh, as your wife, I really think you should be careful with your health. (D) F: I'm sorry, I didn't catch that. Would you mind speaking more slowly?

Ex Output:
B