The correct answer is <span>A. Affirmative action
All of the other mentioned answer has nothing to do with what you've described.</span>
The people of Mesopotamia had two rivers namely the Tigris and Euphrates. They made canals and other man made waterways to use for irrigation and to supply their plants with water. Using these irrigation tools they channeled water from rivers to their crops. Irrigation helped keep the soil moist, and the river water delivered nutrients to the soil. In this way they grew crops on a regular basis.
Few crops that they grew were- barley , wheat, vegetables, lentils, fruits etc.
The manor system was important because people lived on feudal ground owned by rich land owners. Those people were tightly connected to the catholic church and they all swore their allegiance to the pope. The people were all religious and they worked on the land and could keep a part of what they produced but they had to give a part to the manor owner. The owner would provide protection in return.
I think the answer is B for sure