Refer to the figure above. What is the equilibrium price of bottled water?

The table above shows the production possibilities for an economy. When the economy produces a combination of 900 books and 50 loaves of bread,

A) production efficiency occurs because resources are not overused. B) allocative efficiency is achieved because both goods are produced. C) production efficiency is not achieved. D) allocative and production efficiency are both achieved. E) production efficiency is not achieved but allocative efficiency might be achieved.

If adding an initial 100 billion labor hours per year increases real GDP by $3 trillion, diminishing returns informs us that an additional 100 billion labor hours per year will increase real GDP by

A) exactly $3 trillion. B) less than $3 trillion. C) more than $3 trillion. D) either exactly $3 trillion or by less than $3 trillion, depending on whether the real wage rate remains constant or rises. E) some amount but there is not enough information to tell by how much.