Answer: D. The land near rivers has fertile soil
Explanation: People needed to settle in areas in which it would be easier to live and farm. A river provided that needed support in order to do so. The river would also allow for there to be plenty of drinking water.
The incentive is the motivation and reason behind something. The land near rivers is rich and fertile, which makes people settle near the river. Thus, option D is correct.
Fertile soil is soil rich in nutrients that allow the plant and crops to sustain and yield high products making it profitable for the farmers. The soil near the river banks is fertile and has a good amount of nutrients and minerals that support plant growth.
Therefore, the fertile land near the river motivates people.
Learn more about fertile soil here:
https://brainly.com/question/4073106
#SPJ5
