Suppose Bulgaria and Romania specialize in production and engage in mutually beneficial trade. Suppose further that for every liter of sunflower oil that Bulgaria exports to Romania, it receives two liters of mineral water in exchange.Everything else held constant, the opportunity cost of producing one liter of sunflower oil in Romania is _____ two liters of mineral water.

Select one:

A.equal to

B.less than or equal to

C.greater than or equal to

D.greater than

E.less than