Which of the following is NOT a basic function of the Congress?

In U.S. v. Lopez, the Supreme Court ruled that the __________ clause did not give Congress the constitutional authority to regulate guns near a school

a. reserved powers b. commerce c. militia d. supremacy

In an effort to create cleaner-burning gasoline, Congress mandated that 10% of the fuels sold in the years to come should include ________ as an ingredient

A) petroleum B) detergent C) ethanol D) hydrocarbons E) alkaline