Ian has been shopping for a different vehicle for the past several months. He needs something reliable and would really like something with a nice sound system. He and his parents have talked about how much he can afford and he plans to stay within the price guidelines he and his family have set. Ian was analyzing the opportunity cost of a trade‐off regarding which car to purchase.  Which situation best represents what he might be thinking through?

a. Ian is comparing new vehicles at two car dealerships. He was able to find nearly identical
cars at nearly identical prices. One dealership is 20 miles away and the other dealership is
30 miles away.

b. Ian has found two different cars at a local dealership that meet his needs. The first car has a better sound system than the other. The second car has 20,000 fewer miles on it.

c. Ian has been shopping for a vehicle online. He finds something that would meet his needs
being sold by an individual near him. He would be able to purchase this car for less than he
would have paid for a comparable vehicle at a car dealership.

d. Ian’s older brother is trading vehicles and offers to sell Ian his used vehicle. This vehicle
would meet Ian’s needs and he knew the service history of the vehicle was excellent.