Final answer:
Jane is required to make reasonable accommodations for handicapped individuals under the Fair Housing Act of 1968, which prohibits discrimination in housing and mandates such accommodations.
Step-by-step explanation:
The federal law that requires Jane to make reasonable accommodations for handicapped individuals in her multi-family building in Austin is A. the Fair Housing Act of 1968. This law, including its subsequent amendments, prohibits discrimination in housing based on race, color, religion, sex, national origin, familial status, and disability. It requires landlords to make reasonable accommodations in policies and to allow reasonable modifications to the property at the expense of the disabled person when necessary for their use and enjoyment of a dwelling.
While the Americans with Disabilities Act (ADA) also protects individuals with disabilities, it is more focused on employment, government services, public accommodations, and commercial facilities. The ADA does not typically apply to residential properties unless they contain public spaces or are associated with government entities. Jane's obligations as a landlord in terms of accommodations would fall under the Fair Housing Act and not the ADA, which is more widely associated with employment and public services.