The Specialty Cake Store, a Monopolistically Competitive Firm, Is Producing

The Specialty Cake Store, a monopolistically competitive firm, is producing 200 decorated cakes per day and selling each cake for $17. At that production level, ATC is $20, AVC is $15, AFC is $5, and both MR and MC are $8. This firm should

A) continue to produce 200 cakes, as price is greater than AVC.
B) increase output to the point where price equals marginal cost.
C) decrease output to the point where price equals average total cost.
D) shut down and produce zero cakes and just pay fixed costs.