Instructions: 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".
Input: Two men are talking inside a doctor office. They use the equipment to engage in arm wrestling. they <sep> (A) face and arm wrestle as they trade punches. (B) push and pull trying to win. (C) end the match with their hosts bowing and leave the room. (D) lay down in a curling routine.
Output:
B