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".

He starts to walk his body across with his hands. He circles around on the edge of the bars with his arms. he <sep> (A) takes off diving into the pool water. (B) swings his legs and leaps with his arms across the parallel bars. (C) walks across to the other side. (D) then works his feet up while still swinging himself off of the bars onto the mat and his feet have to go back down.
Output:
B