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:
[header] How to use pomade [title] Pick between oil based or water based pomade. [step] Oil based pomade is the more traditional choice, but water based is a bit more popular. The choice depends on the look you're going for with your hair. <sep> (A) [substeps] Oil based pomades tend to be the a bit less expensive than water based pomades. They give a much greasier and shinier look than water based, and they typically have a much stronger hold. (B) When you can opt for oil based, your hair will have the smooth, glossy look you want. If you want the pomade to have a more polished finish, look for a one sided pomade. (C) [substeps] Oil based pomade may look great when you put hair in a ponytail or bun, while water based pomade doesn't add much volume and requires much more work. Other oils low in taste, such as coconut oil can make hair easier for you to twist and style. (D) [substeps] For medium length hair, shave your legs down to your toes to style it nicely. For longer hair, shave a small pile of hair up about half an inch in front of your face.

Ex Output:
A


Ex Input:
[header] How to become a loner [title] Find productive ways to spend time alone. [step] Loners often spend time alone to recharge after spending a lot of time socializing. You can do whatever you want when you're alone, which is one of the great things about being a loner. <sep> (A) Join a club or craft project that excites you. [title] Visit a library, movie theater, or a school newspaper. (B) However, since you'll be spending a great deal of time alone, learn to use that time wisely. [substeps] Learn a new skill, or use your alone time to focus on your hobbies. (C) [substeps] Your solitary time is important because it helps you feel more involved in doing a variety of things. For example, you could pretend you're an explorer or go hiking. (D) [substeps] If possible, try your hardest to take a break every hour of the day to " recharge. " this is also one of the best ways to distract yourself from your thoughts and worries.

Ex Output:
B


Ex Input:
A person uses the toilet in a stall. the man <sep> (A) waits to be interviewed, then touches their shoulder to gesture their pain. (B) uses tissue paper to wipe the walls around the stall. (C) leaves the bathroom without washing his hands. (D) takes a hair curler and rub the hairs in his comb.

Ex Output:

C