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".

Men are in a pool playing waterpolo. People are around the pool watchnig the game. man wearing white shirt <sep> (A) and purple pants dunked the ball in the net and threw and people walked on side of the pool. (B) is standing in an empty room playing orarman. (C) is on a side of th pool doing of referee. (D) is doing one of his tricks.
C