Vitamins are essential to any diet because they aid in the digestion of food by acting as coenzymes they in building bone they aid in building muscle they act as ions in the nervous system and transport neural messages

 they help in building bone.

Explanation:

Vitamins are the organic substances which are essential for the diet in trace amounts but plays important roles which can help in promoting and regulating the growth, maintenance of health and reproduction.

Most importantly Vitamin D also help in building up the bones. The Vitamin D is responsible for the absorption of calcium from food which can help in building up the bones.      

answer; /// i believe that the correct answer is (50%);

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.