The people of Sumer are among the earliest denizens of Mesopotamia. By about 4000 BCE, the Sumerians had organized themselves into several city-states that were spread throughout the southern part of the region. These city-states were independent of one another and were fully self-reliant centers, each surrounding a temple that was dedicated to god or goddess specific to that city-state. Each city-state was governed by a Priest King.
        
             
        
        
        
Mesopotamia introduced a more sedentary way of life by means of agriculture and animal husbandry. So for example, instead of the nomadic way of life, which is/was going hunting, foraging, and/or fishing.
Hopefully this is right and helpful. Good luck!
        
                    
             
        
        
        
I think it's five distinct paths. I could be wrong but it's an educated guess. 
 
        
                    
             
        
        
        
Answer:
Answer is B, a public good dilemma.
Explanation:
Public good dilemma is a type of social dilemma, which involve the decision of members of a group  decide the outcome for any individual.
Its characteristics is that anyone can benefit from their decision at the same time.