Collusion is most likely to succeed when there are

A) few firms and low barriers to entry.
B) many firms and low barriers to entry.
C) few firms and high barriers to entry.
D) many firms and high barriers to entry.

Collusion

A secret or illegal cooperation or conspiracy, especially between parties to deceive or defraud others.

Barriers to Entry

Obstacles that make it difficult to enter a given market, potentially including high startup costs, strict regulations, or strong competition.

Few Firms

In markets characterized by few firms, also known as oligopolies, a small number of companies dominate the industry, leading to limited competition.