Use the Following to Answer Questions

Multiple Choice

Use the following to answer questions:
Figure: The Optimal Quantity
-(Figure: The Optimal Quantity) Look at the figure The Optimal Quantity. If the marginal benefit of lawn mowing decreased, the _____ curve in the figure would shift to the _____ and the optimal quantity would be _____ five lawns mowed.

A) marginal benefit; right; more than
B) marginal cost; right; fewer than
C) marginal benefit; left; fewer than
D) marginal cost; left; more than