Questions: Section 504 of the Rehabilitation Act of 1973 prohibits discrimination on the basis of disability in any program, service, or activity that receives federal financial assistance.

The answer is The Rehabilitation Act of 1973.

The Americans with Disabilities Act (ADA) of 1990 is a comprehensive civil rights law that prohibits discrimination based on disability in various areas, including employment, public accommodations, transportation, and telecommunications. However, it is not specifically Section 504, which is part of a different act.

The Architectural Barriers Act of 1968 requires that buildings and facilities designed, constructed, altered, or leased with certain federal funds be accessible to people with disabilities. It does not specifically address discrimination in programs receiving federal financial assistance.

The Housing and Community Development Act of 1974 primarily focuses on housing and urban development, including community development block grants. It does not specifically address discrimination based on disability in federally funded programs.

The Rehabilitation Act of 1973, specifically Section 504, prohibits discrimination on the basis of disability in any program, service, or activity that receives federal financial assistance. This section is a precursor to the ADA and laid the groundwork for disability rights in federally funded programs.