Answer:
C) the power to regulate schools
Step-by-step explanation:
Reserved powers refer to those powers that the Constitution does not grant to the government and does not forbid to the states, and that belong to the states or the people alone, as established in the Tenth Amendment to the U.S. Constitution.
The powers to enforce laws, to collect taxes and to regulate interstate commerce are powers that the US Constitution specifically grants to the federal government, and they are referred as “Delegated powers.” The power to regulate schools, on the other hand, is nowhere granted to the government in the Constitution nor prohibited to the States, and therefore, is one of the States' reserved powers.