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: We're going to play football at noon, join us? ,M: Sorry, I hurt my leg last week because I fell off my bike and the doctor said I have to stay in bed for 4 weeks.
(A) F: Since you have to stay at home at noon, I'll bring you some lunch. (B) F: Tell me when you go to ride a bike this noon. I want to join you. (C) F: Where will you play football this noon? (D) F: I didn't hear you. Please could you tell me again?

Ex Output:
A

Ex Input:
M: Is there a city where it's always warm? ,F: Yes, there are many cities where it's almost always warm. San Diego for example. ,M: Are there any other cities where it's always hot? ,F: Yes, there are quite a few. Most of the cities in the southern part of the United States are hot all year.
(A) M: I see. Most cities in the western part of China are always hot. (B) M: I know that cities in the southern part of China is always hot. (C) M: Excuse me, could you repeat the question? (D) M: It seems that most cities in the southern part are hot all year around.

Ex Output:
D

Ex Input:
M: Good morning, native tongue translations. Can I help you? ,F: Yes, I was wondering how much it would cost to translate a document from English into Arabic? ,M: Well, it depends on the kind of document how long it is and when you need it returned. We don't do any translations of textbooks. ,F: It's a cookbook about 20,000 words long. It is not urgent so you can set your own schedule. ,M: Well, ma'am, Arabic is one of the most difficult languages in the world. And there aren't very many translators compared to say Spanish. In other words, the charge for Arabic translation will be higher than for most other languages.
(A) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (B) F: Yes. Arabic the most difficult, but I need to translate it from Arabic to English. (C) F: I know. Arabic is one of the most difficult languages in the world. (D) F: Why do you think English is the most difficult language in the world?

Ex Output:
C