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:The boy hands the tooth brush to someone. The boy dances his feet on a wood floor. toothpaste <sep> (A) is taken from a bottle and collected outside. (B) is applied to the toothbrush and handed to the boy. (C) splashes his hand. (D) is brushed in a bowl.
Solution:
B