answer
the correct answer is B. Unions
reason:
the wagner act also known as the national labor relations act, legalized unions in the united states. it was passed in july of 1935 during the new deal era and was a significant piece of labor legislation. the act established the legal right of workers to form and join unions and to engage in collective bargaining with their employers. it also created the national labor relations board, which was tasked with enforcing the provisions of the act and resolving disputes between workers and employers. the act was seen as a major victory for workers' rights and was a key factor in the growth of the labor movement in the united states