Consider two neighboring island countries called Bellissima and Dolorium. They each have 4 million labor hours available per week that they can use to produce rye, jeans, or a combination of both. The following table shows the amount of rye or jeans that can be produced using 1 hour of labor. Country Jeans (Pairs per hour of labor) Rye (Bushels per hour of labor)

Bellissima 6 12
Dolorium 4 16

Initially, suppose Bellissima uses 1 million hours of labor per month to produce corn and 3 million hours per month to produce jeans, while Dolorium uses 3 million hours of labor per month to produce corn and 1 million hours per month to produce jeans. Consequently, Dolorium produces 15 million bushels of corn and 20 million pairs of jeans, and Bellissima produces 8 million bushels of corn and 48 million pairs of jeans. Assume there are no other countries willing to trade goods, so, in the absence of trade between these two countries, each country consumes the amount of corn and jeans it produces.

Required:
What is Dolorium 's oppunrtunity cost for 1 bushel of corn?