The correct answer is capitalist.
Marx had neutral to negative feelings about capitalism - he thought that at one point, the system would stagnate, and would undoubtedly be succeeded by socialism. So capitalism as a system, according to him, was unnecessary. He thought that revolution was necessary to get rid of the system, and conflict theorists agreed.
Answer:
law of diminishing marginal utility i hope this helps<3
Explanation
Rivers: the Tigris and Euphrates
Climates: Northern Mesopotamia's plateaus have a warm climate. Parts of this land receive enough rain for crops to grow. Southern Mesopotamia has hot summers and little rain.