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: So how was your lovely pet dog? ,F: It really makes me upset. ,M: What happened? ,F: It always makes loud noises at midnight. Whenever I fall asleep, it always barks.
(A) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (B) M: Yes, it never makes loud noises at midnight. It's not annoying at all. (C) M: Yes, it always makes loud noises at midnight. It is really annoying. (D) M: Yes, it never makes loud noises at midnight. It is a lazy dog.

Ex Output:
C

Ex Input:
M: Excuse me, how can I find the European paintings? ,F: Take the lift to the third floor and turn right. There just next to the black and white photography show. ,M: Got it. Thank you.
(A) F: Well, we are on the ground floor, so you could take the lift straight to where you want to go. (B) F: I'm sorry, I didn't understand. Could you repeat a little louder, please? (C) F: The Asian paintings you are looking for is just next to where we are now,which means it is next to the European paintings. (D) F: You know we are at the black and white photo show now, so you just take the lift to the forth floor and turn left you will find what you are looking for.

Ex Output:
A

Ex Input:
M: What do you want to do after graduation, Mary? ,F: I like to go into the management. I've applied for several jobs, and already got some offers. ,M: Good for you, Mary. You are always about the most hard-working student in our class and your efforts finally paid off. ,F: It's so nice of you to say so, Lucas. And how about you? ,M: I have to do some more studies to become a lawyer. ,F: Oh, being a lawyer is not easy nowadays. And you have to overcome a lot of difficulties to achieve your ambition. ,M: Definitely. But if our ambitions were so easy to achieve, we would soon get bored. ,F: That's sure. But there's another story. Some people were working really hard yet not succeed. ,M: That is why ambition needs to be realistic. You can't (?) too high. ,F: Sounds reasonable. But according to my understanding, a careful plan in advance places the most important role in achieving success. ,M: You're right. In addition, interest is the best teacher. Like a saying goes, "You can lead a horse to river, but you can't force it to drink." ,F: I can't agree more. My father wanted me to be a surgeon when I choose my major in college. But I'm not interested in any hospital jobs. ,M: A good doctor should be mentally physically strong. ,F: Definitely. I don't think it's possible for me to do the surgeons' work under great pressure, so I will stick to what I'm good at. ,M: How I wish our parents won't push us too much.
(A) F: Yes. Parents always push us too much. The doctor course is about to begin. Let's go now. (B) F: I'm sorry, I don't understand. Could you say it again? (C) F: OK, dad. I'll listen to you and choose to be a doctor in the future. (D) F: Sorry, professor. I have a part-time job in the hospital, and that's why I am late for the doctor course.

Ex Output:
B