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.
Answer:
Once he had discovered America, anyone knew how to get there. His passion for exploration when he was very young, and his persistence for not giving up when investors rejected him, were early signs that Columbus would succeed as an explorer.
Explanation:

Manchuria rich in natural resources and sparsely populated had obvious advantages for a densely populated and resource-poor Japan. Amongst Manchuria's resources coveted by Japan were iron, coking coal, soybeans, salt and above all land, all severely lacking within the Japanese empire in 1930.