The role of the feudalism in the Medieval Europe. It dictated the relationship between different social classes.Thus the option (D) is correct.
Feudalism refers to the system which existed in the medieval period in the European countries at 10th and 13th century. It showed the structure of the society in which followed the social hierarchy based on local administration control.
Feudalism system provided the services to the landowners by the local people who were provided with the price of the land. The local people were suppose to give the military services to their owners. Feudalism secured Western Europe's society and kept out powerful invaders.
Thus the correct option is (D).
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