Given the task definition and input, reply with output. 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".

The man in red shirt is walking in the water pulling the group of tubes. The man stopped walking and talked to the man lying on the tube. the people <sep> (A) gathered small flowers to plant. (B) are picking the man up off of the tubes and then stopped to talk to the man sitting beside the tube. (C) put on their shoes and stood up from their tubes. (D) all stand and then get off the water and those people walk down a dirt path to the water.
C