Watch the following video, and answer the following questions.

A: How does this video characterize the monopolistically competitive market, and what industry is being illustrated as an example? Answer this using at least 100 words.

B: Under this type of market structure, can firms enter or leave the industry? Provide the discussions based on the explanation of video. Answer this using at least 100 words.

C: After you watch video, explain how a monopolistically competitive firm would choose the profit-maximizing price and quantity using at least 100 words.

D: What does this video tell about the difference between perfect competition and monopolistically competitive market? Answer this using at least 150 words.