How did the development of agriculture during the neolithic revolution produce changes in human societies? describe how those changes influenced social roles in river valley civilizations

The development of agriculture allowed them to produce more food in this area of land, which meant that:
1) they didn't have to move around to hunt and gather as much as before; they can settle down.
2) As they don't move around as much, they can build up their families, which means a higher population growth. 

hope this helps

Ithink your answer is b