Why did some african americans grow impatient with the leadership of the civil rights movement?

Althoguh the civil rights movement achieved a lot in its time, it was difficult for people who were involved in it to predict this. Therefore, it was not always clear how the movement was taking place, and this led to impatience among some African Americans. Many people felt that progress was coming too slowly. They also believed that the movement's leaders were compromising a lot in order to achieve change.

answer; ///i believe that the correct answer is (a); ///the crystal will

what are the choices?