An oligarchy is best defined as a government ruled by a dictator. a government ruled by a monarchy. a government ruled by a small

A government ruled by a small elite group

Explanation:

This elite group is filled with a select view of individuals who possess extremely large amount of resources in the society.

Throughout our history , this form of government always ended up in a tyrannical situation because the oligarch tend to develop the perception that they are more superior compared to other citizens due to their power to influence the law.

the federal government of the united states was established by the constitution. us is a presidential republic. the president is head of state, head of government and of a two party legislative and electoral system. the supreme court balances the powers of the federal and the state government. yhe executive branch is headed by the oresident. there are two chambers of congress, the senate and the house of representatives. judicial power is exercised by the judicial branch (or judiciary), comprised of the supreme court and lower federal courts. the judiciary's function is to interpret the   constitution as well as the federal laws and regulations.