Where are presidential candidates formally nominated?
a. at a national convention
b. at a local caucus
c. at a district convention
d. at a state convention

answer:   c. the drafting of common sense

explanation:

necessary and proper clause. the congress shall have power to 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.