Moe divides his time between studying Physics and studying Economics. His production possibilities curve for his final grade in each class is shown below. Both of Moe’s professors require at least a 65 to pass and a 90 to earn an A. Which of the following is true?

A.Moe can pass both classes.

B.Moe could earn an A in economics and still pass physics.

C.Moe can pass physics, but only if he fails economics.

D.Moe can pass economics, but only if he fails physics.

正确答案：Moe can pass both classes.