The correct answer is C) issuing drivers license.
Establishing trade with foreign countries, allocating funds for the military, and printing new currency are all responsibilities given to the federal government. These issues are left to the federal government because they deal with America as a whole.
Licenses, on the other hand, are best handled by the states. This gives states autonomy in determining the qualifications needed to drive in their respective state.
Baldassare Castiglione wrote The Courtier during the Renaissance which described courtly conduct for the nobles of Italy. This is where we get the term Renaissance man.