The correct answer is B; They fought bravely alongside French troops.
Further Explanation:
The Harlem Hellfighters were a group of African American men who were sent oversees to fight in the war. They were assigned to the French Army. The French fighters appreciated the men and respected them unlike the American Army who sent them.
The men served more time fighting than any other troops. The time they spend fighting was a total of 191 ways. They were also known for repelling the Germans and getting back one of their own men who was being captured.
The American Federation of Labor was national federation of labor unions in the U.S. They emerged from a dispute with the Knights of Labor organization. They organized workers in craft unions.