Refer to the Above Figure

Multiple Choice

Refer to the above figure. Which of the following statements is TRUE?

A) Panel A does not represent an economy that is producing efficiently while Panel B does.
B) Panel A represents an economy that has a lower level of technology than Panel B.
C) Opportunity costs do not apply to Panel A but apply to Panel B.
D) In Panel A, equal amounts of Y must be given up to obtain equal increments of X while in Panel B increasingly greater amounts of Y must be given up to obtain equal increments of X.