Correct option is D
In 'Discourse on the Origin of Inequality', Jean-Jacques Rousseau distinguishes between two types of inequality: (B) Natural inequality, which arises from differences in age, health, bodily strength, and qualities of the mind or soul; and (D) Conventional inequality, also known as social or moral inequality, which is established by consent among men and is dependent on social conventions and institutions. Rousseau argues that while natural inequalities are inherent and cannot be changed, conventional (or social) inequalities are a product of societal constructs and can be addressed and altered through changes in social structures and institutions.