How did the McCarran-Ferguson Act affect insurance regulation? a.It contains the basic delegation of authority from Congress to the states with respect to the regulation and taxation of the business of insurance. b.It specifies that regulation of the business of insurance must be kept at the federal level. c.It negates the Gramm-Leach-Bliley Act, which allows insurers to self-regulate. d.It negates the Dodd-Frank Act, which allows insurers to self-regulate