Correct answer is C. manorial system of Western Europe during the Middle Ages.
Explanation:
Option C is the correct one as it refers to the manorial system that existed in Europe in Middle Ages that was based on the division of land that senior gave to his vassals who were controlling the manors. Farmers or the peasants were doing all the hard work on those manors and they lived in this small cottages.
Option A is not correct as manorial system didn't existed during Alexander's period.
Option B is also not correct as it had no connections with the Silk Road whatsoever. Silk Road was connected to the trade system.
Option D is not correct as in India manorial system didn't developed mostly due to their strict caste system.
