Consider the Following Model for the Production of Refined Oil $\pi$

Multiple Choice

Consider the following model for the production of refined oil: MSC = 10 + 0.5Q; MEC = 0.3Q;
MSB = 30 - 0.3Q; MEB = 0. Use these relationships to answer any or all of Questions.
-Based on the model, the firm's M $\pi$ function must be

A) M $\pi$ = 20 - 0.8Q
B) P_E = $22.50
C) M $\pi$ = 0.3Q
D) M $\pi$ = 20 - 0.1Q