Definition: 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".
Input: A gymnast wearing a red and white uniform prepares to mount a pommel horse for his exercise. The gymnast jumps onto the pommel horse and starts with scissor moves. the gymnast <sep> (A) does a series of flips and forward flips into home plate on the tiled seating area. (B) performs the jumps in two lines in an open area of an indoor gym. (C) starts his move with scissor movements. (D) moves into a spinning exercise while on the pommel horse.
Output:
D