Answer:
A. Powerful warriors rose to become chiefs who had a privileged place in society
Explanation:
Social stratification refers to a system by which a society ranks categories of people in a hierarchy. In the United States, it is perfectly clear that some groups have greater status, power, and wealth than other groups.
NATO now include crisis management and peacekeeping, as those have become more needed due to terrorism. NATO was originally made to just keep Communism from spreading.
Brainliest please.