How did mcculloch v. maryland affect the separation of powers in the united states?
a-it established the power of the federal government.
b-it decided that the federal government cannot tax states.
c-it established the power of state governments.
d-it allowed state governments to overrule the federal government.

The correct answer is A.

McCulloch v. Maryland was a US Supreme Court decision enacted in 1819 that defined the limits of the legislative powers exercised by the US Congress in opposition to the legislative powers of the states.

The Supreme Court solved the conflict by establishing the necessary and proper clause, included in the US Constitution, that gives implied powers to the federal goverment that are not explicitly contained in the Constitution. It also describes the supremacy of the federal goverment over state goverments, that cannot easily interfere with the actions of the first.  

c, to compete

the colonial period, since this was a time of mass immigration from a variety of people from europe.