The correct response is: It allowed Congress to create a national bank even though it was not expressed in the Constitution.
McCulloch v. Maryland (1819) was a landmark Supreme Court case that established the implied powers doctrine, asserting that Congress has powers beyond those specifically listed in the Constitution, as long as they are consistent with the Constitution’s framework. This case confirmed the federal government's ability to create a national bank as an implied power under the Necessary and Proper Clause.