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.
The correct answer for this question is "A. withdraw American forces from Berlin." The Berlin Crisis of the late 1940s was an effort to <span>withdraw American forces from Berlin. This crisis has to be taken into action then and there to avoid future difficulties and problems within the nation.</span>