The correct answer is A.
Andrew Young is an American politician, clergymen and civil rights leader.
He served as a Congressman from Georgia, became then United States Ambassador to the United Nations, and finally Mayor of Atlanta.
Working as a pastor, he became active in the civil right movement, especially in voter registration drives. His work brought him in contact with Dr. Martin Luther King, Jr. and together they led the Southern Christian Leadership Conference where Young served as executive director.