An amendment to the United States Constitution must be approved by three- fourths of the states before it can be added to the Constitution. This means that 38 out of 50 states must ratify the proposed amendment either through their state legislatures or by special state ratifying conventions, as determined by Congress. This process is outlined in Article V of the Constitution and applies regardless of whether the amendment is proposed by Congress or by a national convention called for by two-thirds of the state legislatures.
Among the options given—one-quarter, one-half, three-fourths, five-eighths—the correct answer is three-fourths.
