Final answer:
The important legislation passed by Ronald Reagan was the Economic Recovery Tax Act in 1981, which reduced tax rates. The Americans with Disabilities Act was instead signed by President George H. W. Bush in 1990, prohibiting discrimination against individuals with disabilities.
Step-by-step explanation:
The important legislation passed by Ronald Reagan that you are referring to is d) The Economic Recovery Tax Act. After his inauguration, President Reagan pushed for changes in the tax code. Congress responded to his advocacy by enacting the Economic Recovery Tax Act (ERTA) in 1981, which substantially reduced tax rates. The Americans with Disabilities Act, on the other hand, was passed by Congress and signed into law in 1990 by President George H. W. Bush. This transformative act prohibited discrimination against individuals with disabilities in all areas of public life, including jobs, schools, transportation, and all public and private places that are open to the general public. It represented a major step forward in ensuring equal treatment and access for disabled Americans.