Consider the Following Model for the Production of Refined Oil

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 MPC function is:

A) MPC = 20 - 0.8Q
B) MPC = 30 - 0.6Q
C) MPC = 10 + 0.8Q
D) MPC = 10 + 0.2Q