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".

A white truck is seen in a driveway. We see the cameraman's shadow. A person in blue is mowing the lawn. a person people <sep> (A) are using leaf blowers. (B) puts the fingers of a hand. (C) throws leaves onto a lawn. (D) skis down a snowy hill.
A