Answer:
Totalitarianism
because they have absolutely power over their country
<u><em>Many were displeased, which increased tensions over slavery. </em></u>
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They were the biggest so they looked upped to those bigger cities
Ethnicity is like your culture. Language, race, and religion all play into your background and culture. However, politics are something that govern the country you live in -- they're not necessarily connected to your background. Therefore, politics would be the correct answer.