An oligarchy is defined as which of the following?(1 point)Responsesa form of government based on rule by a supreme leadera form of government based on rule by a supreme leadera government that is run by a small group of peoplea government that is run by a small group of peoplea form of government that is based on the idea that the people are sovereign, meaning that citizens have a say in their governmenta form of government that is based on the idea that the people are sovereign, meaning that citizens have a say in their governmentthe idea that authority and legitimacy of government come through the consent of the people