The Equal Opportunity Act of 1972 amended which previous act to expand coverage?

The correct choice is the Civil Rights Act of 1964. The Equal Opportunity Act of 1972 was designed to enhance and broaden the protections provided in the Civil Rights Act of 1964, particularly in terms of prohibiting discrimination in employment and hiring based on race, color, religion, sex, or national origin.

This amendment aimed to strengthen the enforcement mechanisms of the original act, which laid the groundwork for equal employment opportunities. The 1972 amendment expanded the governmental reach in terms of compliance and enforcement, enabling more comprehensive protections against discrimination in various forms, particularly in federal employment and programs receiving federal assistance.

Other options such as the Fair Labor Standards Act, the Occupational Safety and Health Act, and the Americans with Disabilities Act pertain to different regulations and protections related to labor standards, workplace safety, and disability rights, respectively. These acts do not directly relate to the expansion of civil rights protections that the Equal Opportunity Act of 1972 addresses. Thus, the Civil Rights Act of 1964 is the foundational legislation that the Equal Opportunity Act seeks to expand upon.