Which act prohibits employment discrimination based on race, color, religion, sex, or national origin?

The correct answer is Title VII of the Civil Rights Act of 1964. This landmark legislation was pivotal in establishing legal protections against employment discrimination in the workplace. It specifically prohibits discrimination based on race, color, religion, sex, or national origin, thus promoting equality and fairness in employment practices.

Title VII laid the groundwork for a more inclusive workforce by making it unlawful for employers to make employment decisions based on these protected characteristics. It allows individuals who believe they have been discriminated against to file complaints and seek remedies through the Equal Employment Opportunity Commission (EEOC), supporting the enforcement of these protections.

Furthermore, the other choices address different aspects of discrimination. The Age Discrimination in Employment Act of 1967 is focused on older workers, while the Americans with Disabilities Act of 1990 protects individuals with disabilities. The Pregnancy Discrimination Act of 1978 specifically addresses discrimination based on pregnancy, childbirth, or related medical conditions. Each of these acts is significant in its own right but does not encompass the broader scope of protections provided by Title VII regarding race, color, religion, sex, or national origin.