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.

Example Input: M: And so tired! I've been up late studying for the math exam for the last 2 nights. ,F: I have, too. But I'm so nervous that I can't fall asleep at night. ,M: Maybe you can drink a glass of milk and take a bath before going to bed.
(A) F: I didn’t hear you. Please could you tell me again? (B) F: Yes, it is a best way to relax. (C) F: How about your study report? (D) F: Since we have taken too mu time on Chinese exam, I think we should have a good rest.
Example Output: B

Example Input: M: Don't worry about your train sickness. I have brought some tablets with me that prevent train sickness. Here, take this one now. I'm sure you'll be alright on the train. ,F: It's very kind of you. By the way where is the dining car? ,M: The dining car is next to the sleeping car. Shall we eat our meals in the dining car? ,F: The attendant will bring some food here. But since the dining car is next to this carriage, we may just as well eat there. ,M: That's alright. How beautiful the scenery is. Look at the vast stretches of green fields. ,F: But it looks lovely only at this time of the year. It's rather dull and lonely in winter. ,M: That's why I prefer to travel in the summer and autumn. ,F: Me, too. I love summer, though it is hot. ,M: The train's pulling in. Do we have time to get offen stretch our legs? ,F: You may go out if you want. The train will stop for 1/4 of an hour before it continues on its way. Whatever you do, don't miss it.
(A) M: Really? The train will stop for 1/2 of an hour before it continues on its way? Oh, I want to give up the travel. (B) M: I didn’t hear you. Please could you tell me again? (C) M: Don't worry. I just want to get off and relax and I will not miss it. (D) M: Really? The train will not stop for 1/4 of an hour before it continues on its way? Oh, I want to stop the train.
Example Output: C

Example Input: F: Dear, have you bought the drinks for the children? ,M: I'm going to the post office later. I'll go to the supermarket on the way home and get some. I don't think we need anything else, do we? ,F: Well, I'm not sure we have enough food. You know my cousins always eat everything when they come round? ,M: That's ok, I think we've got everything we need. ,F: Good, if you could get started with the housework now. I'll get started with the cooking. I don't want to leave everything until the last minute. ,M: Well, there isn't much to do actually, I cleaned and tidied the living room this morning. Oh, and remember, you'll have to collect my mom from the train station tomorrow. My car is in the garage.
(A) F: Really? You mean you did some shopping this morning and your bike is in the garage? (B) F: Really? You mean there is much to do actually and you did some cleaning this morning? (C) F: I am really sorry, I did not catch that. Would you slow down, please? (D) F: So, you mean you did some cleaning this morning and your car is in the garage?
Example Output:
D