B.The concept of the social contract encouraged peasants to overthrow their unfair government and form a new one.
Explanation:
During the intellectual movement known as the 'Age of Enlightenment', reason, individualism, and skepticism were encouraged by the 18th-century. Its followers wanted to improve human conditions, so thinkers and philosophers created a moral and political philosophy known as social contract, and stated that political power should be a result of a social agreement among the citizens rather than to subdue to monarchy power, which led to the French Revolution.
