Use the passage to answer the question.

Which of the following constitutional provisions does the passage rely on for its legality?

Legislators represent people, not trees or acres. Legislators are elected by voters, not farms or cities or economic interests. As long as ours is a representative form of government, and our legislatures are those instruments of government elected directly by and directly representative of the people, the right to elect legislators in a free and unimpaired fashion is a bedrock of our political system. It could hardly be said that a constitutional claim had been asserted by an allegation that certain otherwise qualified voters had been entirely prohibited from voting for members of their state legislature.


A.
bicameral Congress in Article I

B.
judicial review in Article III

C.
constitutional amendments in Article V

D.
equal protection in the Fourteenth Amendment