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:Four young women and a man are on the stage, while one girl is playing the guitar. The lady in yellow began singing, then the lady in pink shirt. when the girls <sep> (A) are finished singing the crowd cheered. (B) finished singing, she take off her beanie and turn the camera to the other girl. (C) finish singing, they stood and clap. (D) finished singing the man fell and the woman in black shirt takes a sticker and forced him to stand up.
Solution:
A