How Did Durkheim Disagree with Rousseau on the Importance of Society

How did Durkheim disagree with Rousseau on the importance of society?

A) Rousseau felt that society damaged mankind, taking them out of a pure, primitive state, and Durkheim argued that society is what makes us human.
B) Durkheim rejected the concept of society as impure, while Rousseau felt society created civilization.
C) Rousseau asserted that society could only be studied by observation, but Durkheim used meta-analysis instead.
D) Rousseau's ideas were inherently impractical, since he was a philosopher; Durkheim took a more pragmatic approach.