my teacher told me
It is not required!
Carbon Dioxide is not required because it serves as a waste product. However, Oxygen is needed.
you did not attach the discourse, but i assume it to be the discourse on the origin and basis of inequality among men (the original titile in french is: "discours sur l'origine et les fondements de l'inégalité parmi les hommes"), also know as "second discourse". in this discourse, jean-jacques rousseau emphasizes that private property is the basis of all inequalities.
therefore, what enabled the old regime to maintain as long as it did was private property.
answer: all : )