Answer:
Few competitive firms.
Step-by-step explanation:
An oligopoly market is a market structure in which there are few competitive firms. Oligopoly markets are characterized by a small number of large firms that dominate the industry and have some control over prices. These firms may be similar in size and market power, and they may be interdependent, meaning that their actions and decisions can affect the other firms in the market.
In an oligopoly market, firms may engage in strategies such as price leadership, price collusion, and non-price competition (e.g. through advertising and product differentiation) to gain an advantage over their rivals.
So, the correct phrase that describes an oligopoly market is "Few competitive firms."