Which statement about oligopolies is true?

A) Most oligopolies in the U.S.engage in outright collusion.
B) Most oligopolies operate at the minimum point of their ATC curves.
C) Most of our GDP is produced by oligopolies.
D) Collusion is illegal in the U.S.and does not exist.

Oligopolies

Market structures in which a few firms dominate the industry, often leading to limited competition and higher prices for consumers.

Outright Collusion

An openly cooperative effort among competitors to manipulate market prices, limit competition, or divide markets among themselves illegally.