Efficient Output Combination Quantity of Pizzas Produced Quantity of Calzones Produced A 48 0 B 36 15 C 24 30 D 12 45 E 0 60 Refer to the table above which shows efficient levels of production for a pizzeria that only produces pizza and calzones. The pizzeria faces ________ opportunity costs in the production of pizzas and calzones. Group of answer choices increasing decreasing constant negative