What is an oligarchy?

a political regime where most political power effectively rests with a small segment of society.

a state or nation in which the supreme power is actually or nominally lodged in a king, queen, or emperor.

when citizens make decisions about government

A) A political regime where most political power effectively rests with a small segment of society.

Explanation:

An oligarchy is a power structure in which a small group of people have control of a country.

a big wall across the mexican border so no drugs, terrorist, or illegal immigrants can come through : )    

the cost of college has risen faster than inflation for many years.

the high price of student services and administration are two reasons for the rapid increase in cost.