Of All the Political Innovations of the Era of the American

Of all the political innovations of the era of the American Revolution, which can be considered the most radical?

A) the theory that power within a government had to be restrained through a series of checks and balances.
B) the realization that both houses of a bicameral legislature represented all the people, not just narrow classes.
C) the idea that political institutions should be judged by the standard of whether they served the public good rather than the interests of the powerful few.
D) the assertion that government was based on the consent of the governed and that revolution, therefore, was sometimes justifiable.
E) the introduction of government with powers divided among three branches.