An economy produces protein shakes.
If less than the efficient quantity of protein shakes is produced:
A. it is not possible to be producing at a point on the PPF
B. marginal cost equals marginal benefit
C. marginal benefit exceeds marginal cost
D. marginal cost exceeds marginal benefit
if less than the efficient quantity of protein shakes is produced , : D. marginal cost exceeds marginal benefit Marginal cost will keep increasing until it passed the equivalent before it finally started to diminish