Definition: 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 inside a gym together. They are engaged in a game of table tennis. they <sep> (A) kick the tennis ball back and forth against the wall. (B) hit the ball back and forth over the net. (C) crash into each other and then continue to play the game. (D) punch and kick at each other as they play.
Output:
B