Final answer:
An oligarchy is undemocratic because power is held by a small, elite group who make decisions on behalf of the entire population, limiting the participation and representation of the people.
Step-by-step explanation:
An oligarchy is a form of government in which power is held by a small, elite group. Unlike in a democracy, where power is supposed to be held by the people, in an oligarchy, a select few individuals have control and make decisions on behalf of the entire population.
This form of government is considered undemocratic because it restricts the participation and representation of the people. It can lead to unequal distribution of power, corruption, and unfair policies.
For example, in a country ruled by an oligarchy, only a small group of wealthy individuals may have the ability to influence government decisions, leaving ordinary citizens excluded from the decision-making process.