Answer:
D. It dictated the relationship between different social classes.
Explanation:
Feudalism was a quasi-political system based on military and legal conventions or traditions that structured medieval European society from, roughly, the 9th century to the 15th century. This system dictated the social relationships that were to be established between the various social classes at the time: lords, vassals, and fiefs, all revolving around the holding of land in exchange for services or labor.
