Why was Dr. Martin Luther King, Jr. a successful civil rights leader? A. He was a follower of Malcolm X and preached about using only sit-ins to achieve his goals.
B. He used his political connections to gain government positions to advocate for civil rights.
C. He was the leader of the SCLC and advocated violent protest marches for equal rights.
D. He advocated nonviolent civil disobedience and used the churches to communicate to his followers.