Answer:
The author makes assumptions about each institution and its involvement in slavery.
B
People who are born in the United States are called U.S Citizens. A citizen is a member of a Country.
The people who would most likely support imperialism here would be capitalists and the media. Capitalists because they can produce much higher amounts of goods for a much lower price - exploiting the local population, and the media because they have stories to talk about which sell :)
