Detailed Instructions: 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".
Problem:A man in a lab coat uses a swiffer broom. He rakes it across a floor with cleaning solution. the floor <sep> (A) shines as it comes clean beneath his feet. (B) then absorbs the cleaning solution. (C) is mopped with a bristle comb. (D) is mopped continuously in large groups.
Solution:
A