The power to establish a national bank is classified as a. an implied power of congress. b. an express power of congress. c. a revenue-raising power of congress. d. a regulatory power of congress.

The correct answer is a. an implied power of Congress. This means that it is not specifically stated in the constitution that it can be done so, but it is implied, which in simple terms means that they can do it and we just go with it. The creators of the constitution and the congress did not have it in mind, but it is accepted that it can be done.I hope that my answer is helpful! Let me know if you need something more :)