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: He finds a good place to hang his rope on the mountain and starts to climb up again. He decides to move it up a little bit more to a better spot. then <sep> (A) , he starts climbing again struggling a bit before finally making it over the tough spot. (B) he gets off the trail again and he doesn't see any dead leaves on the ground. (C) he starts to climb down again. (D) he begins to talk about the process when he is riding up the mountain.
Output:
A