Respuesta :
Oligarchies are systems where a small number of people or a minority rules over a majority. Most common historically have been plutocracies and Military ruling. In plutocracies the rulers are the rich who are usually a minority, while in militaristic rule there's a military top that rules over the people because the people are not a part of the military.
I believe the answer is: Theocracy and Communism
Oligarchy refers to a country where most of its control fall to the hands of a handful of people. In theorcracy, the most of the control fall to the hands of priest or any similar religious leaders. In communism, most of its control fall to the hands of the President and the loyal party followers,