In what way is the constitution a departure from the original plan for government embraced after the revolution?

Americans originally wanted a government that exemplified democracy and could not become too powerful, whereas the Constitution did not allow for a directly elected president but did allow for taxation.

the answer would b b

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.