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". 

Example Input: Two men are doing martial arts with others around them watching. Many other men are shown doing several flips and tricks around each other. two men <sep> (A) are shown hitting people to give them an out and another man joins in. (B) are joined by a woman. (C) flip near each other while others around them watch. (D) stand on a mat while a man is bartending around them.
Example Output: C

Example Input: [header] How to host a housewarming party [title] Make a guest list. [step] You should start keeping a guest list before you start working on the invitation. Be sure you include any friends, family, and coworkers that you would like to invite into your new home. <sep> (A) This will help ensure that the party is pleasant and enjoyable for your guests. Make sure that the guest list is segregated in different places. (B) [title] Decide ahead of time whether you will invite guests with a " weekly " or " annual " package. [step] You should also design and print out your invitations carefully and make sure they reflect how the party will look. (C) [substeps] Limit the guest list to the number of guests appropriate for the amount of space you have available. If you have a small space, consider hosting 2-3 smaller parties rather than one big one. (D) This way, parties are easier to plan without the need for many less specific guests. [substeps] Include guests that you know will be a good fit for your home's atmosphere.
Example Output: C

Example Input: [header] How to diagnose hamster dental problems [title] Look for signs your hamster isn't eating. [step] Overgrown teeth make it difficult for the hamster to eat. This is because the long teeth force the jaws permanently apart, the long teeth grow into the roof of the mouth or pierce the lips, or the teeth develop sharp jagged edges that make eating painful. <sep> (A) For example, look for overgrown teeth starting from the rear or front row of teeth. [substeps] The teeth grow outward from the front row, sometimes going past the incisors. (B) [substeps] If your hamster's food is not disappearing like it usually does, then it may not be eating due to dental problems. [title] Don't assume food that disappears has been eaten. (C) [substeps] Large, overgrown teeth give your hamster a toothache. The teeth have grown out of the head and will disappear any time the hamster eats the food. (D) [substeps] Plaque production around this part of the mouth can also cause dental problems. So, your hamster might eat litter, sticky or waxy cat litter, poop, or even human food.
Example Output:
B