Which of the following is not a basic market model?

A) pure competition
B) free enterprise
C) oligopoly
D) monopoly

Pure Competition

Refers to a market structure where there are many sellers and buyers, products are homogeneous, and there is free entry and exit in the market.

Free Enterprise

An economic system based on private ownership, voluntary exchange, competition, and the freedom of individuals to engage in business transactions.

Oligopoly

A market structure characterized by a small number of large firms dominating the industry, often leading to limited competition.