If Only Two Products Are Produced in an Economy,corn and Cars,the

If only two products are produced in an economy,corn and cars,the opportunity cost of producing a bushel of corn equals the

A) gain in cars divided by the loss in corn.
B) loss in corn divided by the gain in cars.
C) opportunity cost of producing a car.
D) gain in corn divided by the loss in cars.
E) loss in cars divided by the gain in corn.