Social institution refers to arrangements involving large numbers of people whose behaviors are guided by norms and roles. A social institution is a socially organized social behavior pattern that reflects the established appearance of the society, which are continuously repeated, maintained and approved by the social norms. Neither the society nor the members of the society obtain themselves incidentally. Most of our activities are structured, regular, continuous and repetitive. Social structure is composed of these social actions of and the interactions among the members of the society. In social life, there are phenomena different than physical sciences examine. These phenomena are known as social facts or social reality. Social facts are created collectively by society. They are exterior, inevitable and limiting for the individuals. A status is the rank, the position that one holds in the society. Anybody may occupy the status of a son or a daughter, a husband or a wife, a teacher, or a mother. Statuses are divided into two basic types. These are ascribed and achieved status. Society expects specific behaviors from people who hold specific statuses and these expected behaviors are called “roles”. Roles are composed of the rights and assignments appropriate to the social status. The correct answer is Choice D.