D. The enlightenment concepts
since the enlightenment had to do with believing with individualism and choosing your own goverment, having natural rights, ect. The declaration gave rights that the enlightenment said was needed
Feudalism worked easy because it was a system that worked from top to bottom. At the top you had the King which provided money for the Nobility that provided troops and protection for the king. Then the Nobility would bestow the land to his knights that would give the land to the peasants and they owned the land and farmer on it. The knights would provide military service for food that they farmed.
