Moe Divides His Time Between Studying Physics and Studying Economics

Multiple Choice

Moe divides his time between studying Physics and studying Economics. His production possibilities curve for his final grade in each class is shown below. If Moe moves from Point A to point C, his grade in Physics will go down by ______ his grade in economics.

A) less than the increase in
B) more than the increase in
C) more than the decrease in
D) less than the decrease in