Given the task definition and input, reply with output. 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".

An introduction comes onto the screen for a trailer about a martial arts movie. the trailer <sep> (A) is shown in several men in various positions as they better fight off attack and protection moves like boxing and kicking. (B) is then played showing several martial arts battles and other captions on the screen. (C) shows the credits of the movie. (D) is shown from several angles, as it includes martial artists, jugglers, and singers.
B