Figure 2-13 Figure 2-13 Shows the Production Possibilities Frontiers

Figure 2-13 Figure 2-13 shows the production possibilities frontiers for Costa Rica and Guatemala. Each country produces two goods, pineapples and coconuts.
-Refer to Figure 2-13. What is the opportunity cost of producing 1 ton of pineapples in Guatemala?

A) 1/2 of a ton of coconuts
B) 1 1/3 tons of coconuts
C) 2 tons of coconuts
D) 180 tons of coconuts