"...To make all Laws which shall be necessary and proper for carrying into Execution the foregoing Powers, and all other Powers vested by this Constitution in the Government of the United States, or in any Department or Officer thereof."
This clause was used by Secretary of the Treasury Alexander Hamilton to justify
a. establishing the Bank of the United States
b. creating a federal postal system
c. sending troops to end the Whiskey Rebellion
d. imposing an embargo on trade with Great Britain