Which enable an oligopoly to form within a market? costs of starting a competing business are too high. the government restricts market entry. the number of options in a market confuses consumers. no competition exists between producers.

Costs of starting a competing business are too high

Oligopolies maintain their position of dominance in a market might because it is too costly or difficult for potential rivals to enter the market. These are obstacles that stop or prevent the entrance of a firm in a specific market