Final answer:
Labor unions were the organizations that grew because they were supported and protected by New Deal legislation specifically through the National Labor Relations Act of 1935. this act significantly helped labor organizations like the AFL-CIO and UAW by giving workers the right to unionize and by requiring fair negotiations with employers.
Step-by-step explanation:
The organizations that grew because of New Deal legislation that supported and protected them were labor unions. The passage of the National Labor Relations Act of 1935, often known as the Wagner Act, empowered workers with the right to organize unions and bargain collectively. This act created a more favorable environment for labor unions to thrive, as it required management to engage fairly with union representatives and prohibited certain unfair labor practices.
During the Great Depression, the New Deal policies sought to revitalize the American economy and protect workers. This resulted in a significant boost for labor organizations, with the Wagner Act being a pivotal piece of legislation. Groups like the American Federation of Labor-Congress of Industrial Organization (AFL-CIO) and the United Auto Workers (UAW) were able to use their collective bargaining power to negotiate for better wages, working conditions, and benefits, consequently increasing union membership during the 1930s.Labor unions helped to transform the labor landscape, instigating improved working conditions and labor rights protections. Their growth was actively protected by legislation under the New Deal, symbolizing the institutional support they received from the government at this time.