Where did knights stand in the social hierarchy of a feudal system?

a above all nobles but below the king
b below all nobles and above all peasants
c below all vassals and above all peasants
d above all vassals but below the king

The correct answer is B. Below all nobles and above all peasants

Explanation:

During the feudal system in Europe from the 9th to the 15th century (middle ages), a fixed social hierarchy was created as feudalism was a social system based on land ownership, work and obligation among different people in the social hierarchy. In feudal system The King was on the top of the social hierarchy, he owned all land and ruled the kingdom; then there were the barons and the nobles who designed systems and tax regulations for the administration of the land given by the king; then there were the knights and vassals who protected the King, nobles, and barons in exchange for  lands and rent the land to the villeins; and finally there were the peasants, the villeins and  the serfs who worked on the land and provide food and services to the knights and vassals. Thus, first it was king, then the nobles and barons; then the knights and vassals and finally the villeins, the peasants, and the serfs, this imply knigths were below the nobles and above peasants.