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: On a river outside the boys are walking down the street as cars pass by. there <sep> (A) are many large waves the kids are in as a small child look to the sky to see if they are being lifted by a whale or a hurricane. (B) are children riding tubes and they pass another river before the turn. (C) are many people out doing many different activities on the water. (D) is also a river on the side of the road and it gently bathing the back of a man's head.
Output:
C