Figure: Comparative Advantage Eastland and Westland Produce Only Two Goods, Boxes of Peaches

Figure: Comparative Advantage
Eastland and Westland produce only two goods, boxes of peaches and boxes of oranges, and this figure shows each nation's production possibility frontier for the two goods.
(Figure: Comparative Advantage) Look at the figure Comparative Advantage.The opportunity cost of producing 1 box of peaches for Eastland is:
A.1 box of oranges.
B.1/4 box of oranges.
C.4 boxes of oranges.
D.10 boxes of oranges.