The primary characteristic of a feudal society is the exchange of land for services.
The overlord will grant the vassal a land in exchange for the vassal's services. Services like fighting beside the lord in terms of war. Vassals have their own men and since the vassal is at the service of the overlord, his men is also at the service of the overlord.
B. The ottomans promoted free trade on the silk road
By process of elimination, it would be A. the Ten Commandments.
C. and D. are both Jewish and B. is Babylonian law
Answer:
house slave
coz they worked often cooking cleaning and doing chores bt field slave they used to harvest cotton sugar and which was hard