Step-by-step explanation:
Monopolistic competition
Monopolistic competition, many seller that differentiated products - products that differ slightly but sever similar purpose. By making consumer aware of product difference, seller exert some control over price.
Oligopoly
In an oligopoly, a few sellers supply sizable portion of products in the market. They exert some control over price, but because their products are similar, when one company lowers prices, the others follow .
Monopoly
In a monopoly, there is only one seller in the market. The market could be a geographical area, such as a city or a regional area, and does not necessarily have to be aƱ entire country. The single seller is able to control prices
Mark me as brilliant answer