The Figure Above Shows the Production Possibilities Frontier for a Country

The figure above shows the production possibilities frontier for a country. If the country is producing at point D, then the

A) resources are not being used efficiently and/or are unemployed.
B) technology associated with producing SUVs and station wagons is advancing.
C) resources are being used efficiently.
D) production of SUVs and station wagons is maximised.
E) None of the above answers is correct because it is not possible to produce at point D.