Answer: b. (200 airplanes, 12,500 cars) and (150 airplanes, 15,000 cars)
Explanation:
The opportunity cost of an airplane is 50 cars. This means that if the number of planes produced were reduced by 50, the number of cars should increase by:
= 50 * 50
= 2,500 cars.
In option B, the airplanes were 200 and then reduced by 50 to 150. This led to an increase in cars of:
= 15,000 - 12,500
= 2,500 cars
Option B therefore satisfies the constraints and is correct.