When you buy a consumer durable good, such as a new refrigerator, and the person making the sale keeps trying to sell you an extended warranty on the product, what does that tell you?
a. It is always a good idea to buy an extended warranty.
b. It is never a good idea to buy an extended warranty.
c. The salesperson is always looking out for the benefit of the customer.
d. The store is probably making a big profit on the extended warranty.