Before the French Revolution, the major problems facing French society were caused by the inequality between the lower classes and the ruling classes.
Explanation:
The higher classes were the First State (the clergy) and the Second State (nobility) and neither of them paid taxes. Also Louis XIV, Louis XV and Louis XVI were supporting expensive war campaigns and indulging on a lavish lifestyle and deficit spending. Their solution was to raise taxes on the Third State, the farmers, sweepers, teachers, lawyers and lower classes. The influence of philosphers, teachers and writers from this Third State was key in the French Revolution.
C) Congress does not decide to get rid of laws that go against the constitution. That is the job of the judicial branch not to pass unconstitutional laws.