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 large group of people are seen sitting around an arena with a man sitting on top of a horse. the man <sep> (A) leads the people around on the horse throwing frisbees at them and others running after to throw them back. (B) then rides into the pit and ropes up the calf running around. (C) runs the horse along the field and throws balls in the other direction. (D) leads the group spinning around on the horse and holding a rope over his head.
Output:
B