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".

Three females are dressed in all black in a horizontal line on a red mat. they <sep> (A) then begin to move simultaneously together moving their legs and hands with fans in their right hands. (B) begin blow drying one another's hair and braiding it out with some clips. (C) move body profiles back and forth as they perform kickboxing. (D) stand still as they await their place in the line so no other competitors will notice them.
A