Answer:
The treaties failed to work because the settlers would change the treaty to suit what they wanted and what benefited them.
Explanation:
Tenth Amendment to the U.S. Constitution "The powers not delegated to the United States by the Constitution, nor prohibited by it to the states, are reserved to the states respectively, or to the people." FEDERALISM
I would say your best answer would be letter C.
Answer:
The U.S. Bureau of Labor Statistics or the United States Department of Labor.