Preceding to the merger of the American Federation of Labor and Congress of Industrial Organizations to the AFL CIO merger in year 1955: (1) The AFL was an alliance of the industrial unions. (2) The CIO was an alliance of the craft unions. (3) Jurisdictional strikes over which the unions would symbolize workers were common. (4) The union movement was constrained to public employees.
Can someone please help me in finding out the accurate answer from the above options.