For over-the-counter drugs, drug stores often use shelf tags to make explicit, direct comparisons between store brands and national brands (i.e., "As compared to ") when store brands are priced less than national brands. Which of the following considerations about the economic value to customers (EVC) are the shelf tags attempting to emphasize?

A.The maximum price a customer should be willing to pay for the product.

B.The total cost of ownership over the entire life of the product.

C. The after-purchase costs of the product.

D. The relative price of the product.