Oscar and Julia can both produce either bananas or coffee. Oscar can produce either 16 pounds of coffee and 0 pounds of bananas or 64 pounds of bananas and 0 pounds of coffee.

Julia can produce either 20 pounds of coffee and 0 pounds of bananas or 40 pounds of bananas and 0 pounds of coffee.

For Oscar, what is the opportunity cost of producing 1 pound of coffee. Enter a whole number