Which clause provides that the Constitution shall be the supreme law of the land?

The Three-Fifths Compromise stipulated that ______.

a. a three-fifths vote of Congress was required to propose a constitutional amendment b. a three-fifths vote in the Electoral College was required to be elected president c. three-fifths of a state’s slave population would be counted for the purposes of representation d. three-fifths of the justices on the Supreme Court must vote for a judicial decision

Since 1900, wars have killed an average of about one million people per ______.

a. month b. century c. decade d. year