Answer:
a) Oligopoly
Step-by-step explanation:
The oligopoly is a market structure which characterized by the presence of a few large companies producing homogeneous or differentiated products
In this market, there are few sellers plus there is also a barriers for entering the new firms in the market. Also, the prices are normally fixed in this market because due to the competitors as they are fear of price war
So in the given question, it indicated the oligopoly scenario