Which form of government is controlled by a small group of wealthy citizens?
direct democracy
representative democracy
oligarchy
autocracy

Oligarchy is the correct answer.

Explanation:

Oligarchy is the government in which the power is held by small group of people, these people are the most powerful  people of the state. Sparta is a good example of Oligarchy. If the best people of the state rule it, it is called Aristocracy and if the richest people rule the state the it is called Oligarchy. Monarchy and democracy are other types of governments. Monarchy is rule by the king and democracy is the rule by the people, in which they elect their representatives. Democracy can also be further divided in to direct democracy and indirect democracy.

a. favoring native born americans over immigrants.

) the chinese armed forces had been removed from the city