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 person grabs a saddle from the side of a barn. They carry it and put it onto a horse. they <sep> (A) climb onto the back of the horse and ride off. (B) hold up a trophy of achievement. (C) also put saddle shoes on a horse who walks around. (D) remove the saddle from the horse and tie it.
Output:
A