Which idea of jean-jacques rousseau's differed from baron de montesquieu?

The idea of Jean-Jacques Rousseau's that differed from Baron de Montesquieu is the belief in the basic good nature of human beings.

The theorist Jean-Jacques Rousseau believed that man is naturally good and that vice and error are alien to him. This lead to a conflict between “nature” and “artifice” in attitudes to society, education and religion. Rousseau argues that nature is man’s state before being influenced by outside forces.

Baron the Montesquieu believed that all things were made up of rules or laws that never changed.

the answer would be a i think?

b is the answer i am assuming