Answer:
Price competition in a monopolistically competitive market
Step-by-step explanation:
Monopolistic competition is a competition model in which two or more companies compete in the same market and offer similar but not exactly the same products. These products compete for differentiation and price. This is the case in which Starfire Coffee sells mint coffee for $ 5 and Reindeer Brews enters the market and competes with Starfire by selling mint chocolate, a similar product, for a competitive price of $ 3.