Q: 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".
A professional tennis match is played during a tournament. The players talk on headsets during the match. a man <sep> (A) is shown in a room playing peolpe. (B) prepares to serve the ball to start the match. (C) point puts the ball in the net. (D) in red waits in a lane with a basket.
A:
B