1980 was the time at the end (but people didn't know that) of the Cold War, that is the conflict between Capitalism and Communism,
US had a capitalist system and was actively involved in stopping the spread of Communism in Asia and Latin America and this is also the correct answer: stopping the spread of Communism.
Answer:
B) oligarchy
Explanation:
ol·i·gar·chy
/ˈäləˌɡärkē/
noun
a small group of people having control of a country, organization, or institution.
a country governed by an oligarchy.
"the English aristocratic oligarchy of the 19th century"
government by an oligarchy.
I would say C) Evaporation
Hope this helps, Good luck! (:
C probably if not then sorry
I would say that one assumption is the superiority of Europeans over Africans: their belief that somehow they had the right to enslave other people.
This could be connected to their racism (they thought the same of native Americans and there was a discussion whether native Americans have souls) or religious feeling of superiority ("pagans are not the same as Christians"...)