Answer:
c. a city with two firms who are licensed to sell school uniforms for the local schools
Step-by-step explanation:
An oligopoly is an industry that is dominated by few large firms.
characteristics of an oligopoly are :
high barriers to entry or exit of firms
few large firms
interdependence among firms
a farmers’ market with many individuals selling sweet corn and tomatoes is an example of a monopoly
a city whose electrical service is provided by one electric co-operative is an example of a monopoly
a city with two firms who are licensed to sell school uniforms for the local schools is an example of a duopoly which is a type of monopoly
a city with many independently-owned hair styling salons is an example of monopolistic competition