You will be given a definition of a task first, then some input of the task.
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 few boys stand around doing different things in a locker room. one boy <sep> (A) kicks and spins around showing off his martial art skills. (B) jumps up and grabs a hose and starts water boarding over a rope on the ground. (C) throws his helmet down as he is preparing to join a bike race. (D) joins others who are doing a cheer alone with big red cups in hand.
Output:
A