The supreme court case mcculloch v. maryland ensured that: a) states did not have the power to tax citizens or businesses within their states. b) a state law could be declared illegal if it contradicted the constitution. c) states could operate their own banks without interference from the federal government. d) it remained unclear whether a state law could contradict a federal one.

B) A state law could be declared illegal if it contradicted the constitution.

Explanation:

The conflict of this case originated when James W. McCulloch, a cashier of the Baltimore branch of the Second Bank of the United States that the Congress had chartered in 1816, refused to pay a tax imposed by the Maryland state.

In the case, the state of Maryland appealed that the establishment of a Second Bank was unconstitutional since the Constitution didn't say anything about granting that power to Congress. However, the case determined that even if such right wasn't specifically stated in the Constitution, it was part of the "implied powers" of the government enunciated in Article I, section 8.

The case also eliminated Maryland's legislation to impose taxes to a National Bank, asserting that even though the states retained the power of taxation, the Constitution's laws are supreme and can not be controlled by the states, therefore, if a state law contradicts the constitution, it should be declared illegal.

would not cooperate with each other voluntarily.

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