Maggie owns and operates a coffee shop on the Halifax Waterfront, she operates in a monopolistically competitive market. The diagram below shows her cost, demand, and marginal revenue curves. Price and cost (dollars per latte) 10- 00 6 4 2 At Maggie's profi a) $40 c) $20 20 d) $0 MR b) Can't be determined aximizing level of latte, c MC ATC 40 50 60 D 80 100 Quantity (Latte per hr.) ter surplus is