The tenth amendment was added to the bill of rights because

giving power to a central government

Explanation:

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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. The Tenth Amendment was included in the Bill of Rights to further define the balance of power between the federal government and the states.

so its establishing federalism.

hope this helps :)

c, because the american revolution was from 1765 to 1783.

it was the "4. potsdam" conference that demanded the unconditional surrender of japan, since it was clear that the japanese would continue to find until the very last man otherwise.