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".
Q: A little girl is guided as she mounts a camel at a station. A man helps her as he leads the camel around. the girl <sep> (A) gets on the camel. (B) walks in front of the camel with the man in front. (C) passengers the camel to the finish line while the man guides the camel, as she is led to a sitting position. (D) smiles as she rides the camel around the pen.
A:
D