Instructions: 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: Several people lay in tubes in the snow. More people are standing around them. Eventually some of them go down the hill. they <sep> (A) are shown in several clips performing acrobatic tricks. (B) stand where they started, waiting to go down. (C) begin to get up and walk away. (D) reach the bottom of the hill.
Output:
D