If you chose A, you are basically saying that they left as they waited for the groom. If you chose B, you basically are saying that you are choosing what you people are and separating in groups. And if you chose D, well, you are basically saying that you were trying to keep people together by giving ideas to them. They want to make them sleep. So the best answer is C, congregated.
is this ok..? Do describes the time of when his girlfriend saw how poorly Anh was treated by a security guard. He explains how racism was/is an everyday part in his life and how he did not seem to notice how much it happened, as he was so used to it.