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 man is seen sitting on a piece of exercise equipment and rowing himself back and fourth on a machine. the man <sep> (A) moves in several more jumps while maintaining his momentum. (B) picks up a red elliptical and prepares it for use. (C) continues rowing forward and backward and faster while flipping his body and staying upright. (D) continues moving himself back and fourth as the camera captures him from several angles.
Output:
D