Which of These Is NOT an Example of an Unfunded

Which of these is NOT an example of an unfunded mandate imposed on the states by the federal government?

A) the mandatory building codes of the 1990 Americans with Disabilities Act
B) the 1996 Defense of Marriage Act, which allowed states to refuse to recognize same-sex marriages performed in other states
C) increasing mandatory Medicaid benefits while decreasing federal contributions to the program
D) the Asbestos Hazard Emergency Act of 1986, which requires school districts to inspect for asbestos hazards and remove them when necessary
E) an increase in the federal minimum wage that applies to state government employees