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 person is kneeling down painting something on the ground. they <sep> (A) smooth out the paint. (B) turn the canvas and start painting a white page next to it. (C) move the other item over and over on the floor. (D) start a fire with a stick.
Output:
A