Which of the following is a power reserved for the states?

The ability to provide schooling and education is a power reserved for the states because the United States Constitution allows states to manage their own educational systems. This reflects the federal structure of government where certain powers are granted to the federal government, while others remain with the individual states. Education has traditionally been a state responsibility, allowing for local control and administration that can cater to the specific needs and preferences of communities.

The other options represent powers that are explicitly granted to the federal government. Printing money is the responsibility of the federal government through the U.S. Treasury and the Federal Reserve. Creating an army falls under the authority of the federal government, which is tasked with national defense. Declaring war is also a power reserved for Congress at the federal level. Thus, providing schooling and education is distinctively a state power, aligning with the principles of state sovereignty within the U.S. legal framework.