Which act included a prohibition against discrimination on the basis of race, color, and national origin in federally funded programs?

The correct choice is the Civil Rights Act of 1964, which established a comprehensive framework for combating discrimination in various sectors of American life, including employment, education, and public accommodations. Specifically, Title VI of this Act prohibits discrimination on the basis of race, color, and national origin in programs and activities receiving federal financial assistance. This was a landmark piece of legislation aimed at addressing the systemic inequalities that existed in the country at the time.

The Act represented a significant advancement in the civil rights movement, laying the groundwork for subsequent laws and amendments that further sought to promote equality. This included ensuring that federal funding would not support organizations or institutions that practiced discrimination.

Understanding the role of the Civil Rights Act of 1964 is crucial in recognizing the broader context of civil rights in the U.S., as it enforced the idea that federally funded programs must adhere to principles of equality, thus shaping how public institutions operate to this day.