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 girl is stretching in front of a swimming pool. she <sep> (A) releases a ball and bounces it around. (B) steps on a board and dives into the pool. (C) jumps in the water and swims towards the camera. (D) holds a stick up in front of her and then throws a disc.
A:
B