the sources of powers reserved to the states are specifically outlined in the tenth amendment. the supremacy…

Brief Explanations:

The Tenth Amendment of the U.S. Constitution reserves powers not delegated to the United States by the Constitution, nor prohibited by it to the States, to the States respectively, or to the people. The Supremacy Clause deals with the relationship between federal and state laws. Article I of the Constitution outlines the legislative branch. State constitutions detail state - specific governance but not the source of reserved powers as defined by the federal Constitution.

Answer:

the Tenth Amendment.