The correct answer is A) it ruled that state laws could not undermine a federal institution.
The Supreme Court ruling in the McCulloch v. Maryland case helped strengthen the federal government in that it ruled that state laws could not undermine a federal institution.
The McCulloch v. Maryland case was decided on March 6, 1819. The Supreme Court decided unanimously that the United States Congress could incorporate the Second Bank of the US, and the state of Maryland had no power to impose taxation on the bank. The state could not have power over the federation.