Which law prohibits discrimination based on gender, race, and national origin?

The correct answer is the Civil Rights Act, as this landmark legislation was enacted in 1964 to address and prohibit various forms of discrimination in several areas, including employment, education, and public accommodations. Specifically, Title VII of the Act prohibits employment discrimination based on race, color, religion, sex, or national origin. This makes it a crucial legal framework for promoting equality and ensuring that individuals are treated fairly in the workplace, regardless of their gender, race, or ethnicity.

The other laws mentioned serve different purposes and address other forms of discrimination or rights. For example, the Equal Employment Opportunity Act expands and enforces the provisions of the Civil Rights Act, but it does not stand alone as the primary legislation prohibiting discrimination. The Americans with Disabilities Act focuses on preventing discrimination against individuals with disabilities, while the Fair Labor Standards Act regulates minimum wage and working hours but does not encompass the broad protections against discrimination based on gender, race, or national origin that the Civil Rights Act provides.