Definition: 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".
Input: A man and woman are sitting at a dinner table. A man gets up and walks to the bathroom. a man <sep> (A) serves pizza onto their plates. (B) is rubbing a tile with a brush. (C) comes and washes a woman's back, kissing her. (D) then comes to the table and goes up and down the room cleaning the silverware with a cloth.
Output:
A