What was an important idea of the Age of Enlightenment? A.
People needed religion to understand the natural world.
B.
Societies needed authoritarian leaders to function well.
C.
The greatest truths could be learned from artistic expression.
D.
Societies could be improved through the use of reason.

I think it c

Explanation: Because it want see the truth.

this question makes no sense dude

basic principles: federalism, separation of powers, checks and balances, judicial review, representative democracy, limited government, rule of law, individual rights and responsibilities, consent of the governed, majority rule, popular sovereignty, equal protection.