Each day, Tasty Tortilla Company incurs total costs of $8,000 to process flour into tortillas. The company can then sell the tortillas as is for total daily revenue of $22,500. Alternatively, Tasty can fold and fry the tortillas to make hard taco shells. The additional costs for making the taco shells are $4,200 per day, and the total daily revenues from the finished shells are $26,700. Given these figures,

A : the firm will make an additional $8,000 in income per day if it sells tortillas instead of taco shells.

B : the firms income will remain unchanged whether it sells tortillas or taco shells.

C : the firm will make an additional $4,200 in income per day if it sells taco shells instead of tortillas.

D : the firm will make an additional $14,500 in income per day if it sells taco shells instead of tortillas.