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 gymnast stands before a large crowd in an arena and puts his hands up. he <sep> (A) then dives in the air onto a spinning disc. (B) begins his routine that involves many flips and rotations. (C) spins himself around and throws his arms in wile he completes a high jump into a pit below him. (D) performs several flips and wings around in the arena.
A:
B