Question 9 of 15 Which statement best completes the diagram of the constitutional amendment process? A member of Congress proposes an amendment. The amendment is approved by two-thirds of both the House and the Senate. ? The proposed amendment is added to the Constitution. A. The amendment is ratified by three-fourths of all states. B. The amendment is approved by a majority of voters in a national election C. The amendment is ruled constitutional by a majority of the Supreme Court. D. The amendment is sent to the president to be signed or vetoed.