What does the Americans with Disabilities Act (ADA) prohibit?

The correct answer is focused on the specific protections the Americans with Disabilities Act (ADA) provides. The ADA is a comprehensive piece of civil rights legislation that prohibits discrimination against individuals with disabilities in various areas, including employment, public accommodations, and transportation. When it comes to housing, the ADA ensures that individuals with disabilities are not unfairly treated or denied access to housing opportunities due to their disabilities. This includes requiring reasonable accommodations and modifications in housing policies and practices to allow for equal access, affirming the right of people with disabilities to fully participate in their communities.

The context surrounding the other options outlines different aspects of fair housing and discrimination laws but does not directly relate to the core intent of the ADA. For instance, while discrimination in advertising by landlords, failure to display fair housing posters, and segregation of housing based on race are all significant issues in the realm of housing equity and civil rights, they fall under specific regulations of the Fair Housing Act or other legislative protections rather than the ADA itself. Thus, option C accurately captures the essential role the ADA plays in safeguarding the rights of individuals with disabilities.