The correct answer is A) the Nation of Islam and the Black Power Movement.
The person or groups that were influenced by the racial and economic philosophies of Marcus Garvey was the Nation of Islam and the Black Power Movement.
Marcus Garvey was the leader of one of the most important African American organizations, The Universal N*gro Improvement Association (UNIA). In the 1920s it had 700 branches in 38 states. This movement greatly influenced the Nation of Islam and the Black Power Movement, a movement of black Muslim people who had among its most important figures Malcolm X, who also served as its spokesperson.