Which law prohibits the use of discriminatory work practices against union employees?

The National Labor Relations Act (NLRA) is the correct answer because it specifically addresses the rights of union employees and their ability to engage in collective bargaining without facing discrimination or retaliation from employers. This law ensures that employees can organize, join labor unions, and participate in collective activities without the fear of losing their jobs or experiencing other forms of discrimination.

The NLRA encompasses various provisions that protect union workers, including the right to collectively negotiate wages, working conditions, and other employment terms. It aims to establish fair practices in the workplace, allowing employees to advocate for their rights without the threat of employer retribution.

In contrast, the Fair Labor Standards Act primarily deals with wage and hour issues, such as minimum wage and overtime pay, and does not specifically address discriminatory practices against union employees. The Equal Pay Act focuses on ensuring that men and women receive equal pay for equal work, while The Family Medical Leave Act provides unpaid, job-protected leave for certain family and medical reasons, neither of which specifically prohibits discriminatory practices against union members.