The correct answer is "included whether the national government could charter a bank."
In McCullough vs. Maryland, the Second National Bank of the United States was located in Maryland. Maryland, at the time, passed legislation to put a tax on banks. McCullough (who worked at the National Bank) refused to pay this tax. The state of Maryland then took up this case and ruled that the national government did not have the power to create a national bank because it was not written in the Constitution. This case was then brought to the Supreme Court.