You will be given a definition of a task first, then some input of the task.
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 man is seated in front of a small canvas. he <sep> (A) is showing exercises on how to use a paint roller. (B) picks up a brush and begins painting his brush. (C) is painted in a colorful pattern. (D) uses a long pointed brush to create an image.
Output:
D