Answer:
A - The federal government could not assume powers reserved to the states.
Amendment 9: 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.
<em>Also it was because all the constitution writers owned slaves, but you didn't hear it from me. </em>
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It means that God made you as a masterpiece
The answer is C. The US and Japan had been bumping heads.