People controlling small percentages of wealth is called an oligarchy. Countries that have this according to a list I found include Russia, China, Saudi Arabia, Iran, Turkey, South Africa, North Korea, Venezuela.
I would say passage 1. Expository text is a non fiction writing meant to inform. It is all facts. The only other one i would consider is passage 3.
Historical Context: the political, social, cultural, and economic environment related to historical moments, events, and trends. Historical artifacts and sources were created within particular worlds and are tied to the political, social, and economic conditions of those worlds.
OK so the Latin prefix dis means Apart.
