The correct answer is: "It declared the supremacy of the federal goverment over state goverments and the existence of implied powers, not explicitly listed in the Constitution but authorized by its content"
McCulloch v. Maryland was a case discussed by the US Supreme Court which led to the enactment of a landmark decision in 1819.
It delimited the scope of the different goverment levels existing in the US. More specifically, it <u>declared the supremacy of the federal goverment over the states,</u> whose power to interfere with the federal decisions is limited. Moreover, <u>some of the federal powers are implied, which means that they are not explictly enumerated in the Constitution but authorized by its provisions. </u>
In this case, the state of Maryland could not challenge the decision of creating a national bank that had been adopted at a federal level. The creation of a national bank was not listed as one of the powers of the federal goverment in the Constitution, therefore it is an implied power.