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 children on the sidelines are jumping up and down with swim caps and swimsuits on as they watch the people who are already in the pool swim. a person <sep> (A) buys wooden matches from the woman who stands near one of the swimmers. (B) wearing a toga overtakes the girls as they stand around a tile base, and the group looks at each other. (C) walks by the camera as the shaky camera focuses on the people who are already in the pool swimming. (D) takes a sip from a drink as she's now walking the inside of the water and preparing to jump.
C