Answer: There are four types of government systems (oligarchy, aristocracy, monarchy, democracy)
Step-by-step explanation:
An oligarchy is a form of power structure in which power rests with a small number of people.
An aristocracy is the highest class in certain societies, especially those holding hereditary titles or offices.
A monarchy is a form of government with a monarch at the head.
A democracy is a system of government by the whole population or all the eligible members of a state, typically through elected representatives.