Final answer:
d) 100%. The minimum percentage of first-floor dwellings that need to be accessible under all conditions is 100% (option d). This requirement is part of the Americans with Disabilities Act (ADA), which ensures that individuals with disabilities have equal access to public facilities and private housing.
Step-by-step explanation:
The minimum percentage of first-floor dwellings that need to be accessible under all conditions is 100% (option d).
This requirement is part of the Americans with Disabilities Act (ADA), which ensures that individuals with disabilities have equal access to public facilities and private housing.
By mandating that all first-floor dwellings be accessible, the ADA aims to accommodate people with disabilities and provide them with equal opportunities to enjoy and live in accessible housing.