In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D". 

Ex Input:
An introduction comes onto the screen for a video about rock climbing and a man introduces what will happen in the video. a men in a blue shirt <sep> (A) is doing a jump and falling off, then he begins to climb along the rock face with another by him. (B) stands behind a rock wall talking. (C) is shown climbing all the way to the top of a rock. (D) and the interviewer is inside of a gate in a park and he begins by jumping up to the top of a roofed wooden fence to do various things.

Ex Output:
C


Ex Input:
[header] How to handle having a toxic mother [title] Be aware that your mother might not realise that what's she's doing or saying is affecting you. [step] Try talking about it with her, telling her how you feel. You might be surprised to find that she's actually quite understanding; after all, she's human too. <sep> (A) [title] If you're really dealing with a toxic mother, be caring. [step] Basically, try your best to show she is not hurting you. (B) [substeps] You might be embarrassed, and really hurt. Try to talk to her about your feelings instead. (C) [substeps] You could say, " i feel frightened about what you're telling me. I wish i could make you feel better, but i don't know how. (D) [title] Choose the right time to talk it over. [step] There is a wrong time for you to have this conversation.

Ex Output:
D


Ex Input:
[header] How to deal with adhd in college [title] Pick out supportive colleges. [step] As a student with adhd, you'll face a lot of challenges in college. Think about these challenges and how you can best manage them before you've gotten there, when you're first applying to schools. <sep> (A) Look for schools that tend to be popular in the admissions field. [substeps] Students who get into college with adhd can afford to rent a college-level dorm room, conduct extracurricular activities, and complete required coursework. (B) Research and look for colleges that have resources and offer a supportive environment. [substeps] Think about things like class size, workload, the academic calendar, and available support services. (C) [substeps] Look for schools that offer internships and careers training. For instance, if you can get your foot in the door to a well known focus on business, school will be the place for you. (D) [substeps] Schools can't replace real world choices for the education and fulfillment of the students you live with. Not everyone you live with will have the support a real college has to give them.

Ex Output:

B