Which law prohibits discrimination based on a disability in programs receiving federal funds?

The Rehabilitation Act of 1973 is the correct choice because it specifically addresses discrimination against individuals with disabilities in programs and activities that receive federal financial assistance. Section 504 of the Act mandates that no individual with a disability should be excluded from participation in or denied the benefits of any program receiving federal funds, ensuring accessibility and equality.

This law set a precedent for later legislation, including the Americans with Disabilities Act, which applies more broadly to both public and private sectors but does not specifically focus on programs receiving federal funds. The Fair Housing Act focuses on discrimination in housing based on several factors, including disability, but does not govern all federally funded programs. The Housing Opportunity Program refers to specific initiatives and is not a law addressing disability discrimination. Thus, the Rehabilitation Act of 1973 is the most relevant law when it comes to prohibiting discrimination based on disability in federally funded programs.