How is an oilgarchy different from a monarchy? A) Historically, oligarchies tended to replace monarchies as a common form of government B) Oilgarchies are only a theory, while monarchies have been around for thousands of years C) oligarchies are rule but the few people or a small group, while monarchies are usually ruled by one person. D) historically, oligarchies were mostly found in asian areas while monarchies were the only form of european government

C

Explanation:

Oligarchies are governments ruled by a small group of people (usually wealthy ones) whereas a monarchy is ruled by a single person.

an informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.