Q: 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 washing their hands as the words "tutorial: how to wash your hands" appears on screen. a continuous scroll of instructions <sep> (A) appear with occasional flashing words and washes appearing on the screen periodically. (B) crawls across the bottom of the screen. (C) appear across the screen. (D) is on the screen next to and below the hand wash.
A:
B