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".
Input: A toothbrush appears on screen while brushing a set of false teeth, the words "modified bass" are overlaid. The man talks while the woman brushes her teeth. the toothbrush <sep> (A) touches and occasionally pierces the different parts of her teeth. (B) mixes with white water and more words appear. (C) then appears and the man speaks again to the model again, with his attempt to brush fully now enters the dron and the woman motions for them to return. (D) returns to brush the false teeth.
Output:
D