What was the social structure of feudalism?what connects the classes?

Explanation:

A feudal society has three distinct social classes: a king, a noble class (which could include nobles, priests, and princes) and a peasant class. Historically, the king owned all the available land, and he portioned out that land to his nobles for their use. The nobles, in turn, rented out their land to peasants.

Social classes are groupings of individuals in a hierarchy, usually based on wealth, educational attainment, occupation, income, and membership in a subculture or social network.

Social structure, in sociology, the distinctive, stable arrangement of institutions whereby human beings in a society interact and live together. Social structure is often treated together with the concept of social change, which deals with the forces that change the social structure and the organization of society.

interdependence is when all participating groups and individuals depend on each other. if you depend on one anothers goods, you end up trading in order to get the items you're looking for. (for ex: if i have food and you have water, we trade in order to depend on each other to live)