What concept does the 10th Amendment clarify?

The 10th Amendment to the U.S. Constitution is vital in defining the scope of federal and state powers. It specifically clarifies that powers not delegated to the federal government by the Constitution, nor prohibited to the States, are reserved for the States or the people. This provision emphasizes the principle of federalism, which allows states to retain a degree of autonomy and authority unless explicitly granted to the federal government.

In this context, the correct answer revolves around the concept of reserved powers, highlighting the balance of power between state and federal governments. The 10th Amendment serves as a safeguard against federal overreach, ensuring that any power not specifically outlined in the Constitution remains under the jurisdiction of the states or the people.