The act that supported union organizing was the (1.02) a) National Labor Relations Act b) Taft-Hartley Act c) Landrum-Griffin Act d) Sherman Antitrust Act

Let's briefly review each of the given acts. a) National Labor Relations Act: This act was passed in 1935 and is also known as the Wagner Act. It protected the rights of employees and employers, and promoted collective bargaining and unionization of private-sector workers. b) Taft-Hartley Act: Passed in 1947, this act was aimed at reducing the powers of labor unions by amending some provisions of the National Labor Relations Act regarding unions and the rights of employees. c) Landrum-Griffin Act: This act, also known as the Labor Management Reporting and Disclosure Act, was passed in 1959 to address issues related to governance, financial disclosure, and labor organization practices, ensuring fair union elections. d) Sherman Antitrust Act: Passed in 1890, this act was designed to regulate and limit monopolies and cartels, prohibiting practices that restrain trade, and promoting fair competition in the marketplace.

After reviewing and understanding the descriptions of each of the acts, our focus should be on the act which directly relates to the support of union organizing. Based on the descriptions, the act which best fits this criteria is the National Labor Relations Act (Wagner Act), as it promotes unionization and collective bargaining for private-sector workers. Hence, the correct answer is: a) National Labor Relations Act