Answer:
D. well-organized governments.
Step-by-step explanation:
One of the most important reasons why government exists is because large groups of people require some type of organization in order to make good use of their resources. This is why a functioning government is one of the essential characteristics of civilization. A well-organized government will ensure that the resources of a group of people are well-utilized, and are distributed in a way that benefits the largest amount of people possible.