In many cities, grocery stores find that their sales are much greater on days when they have advertised their special bargains. However, the advertised special prices do not appear to increase the total physicalvolumeof groceries soldby a store. This leads us to conclude that many shoppers' criterion is

This question is incomplete, the options are missing. The options are the following:

a) Minimize inputs

b) Minimize outputs

c) Minimize the difference between the inputs and outputs

And the correct answer is the option C: Minimize the difference between the inputs and the outputs.

Explanation:

To begin with, the criteria used by those shoppers could be understood as the one that tries to minimize the difference between the inputs and the outputs due to the fact that when they see the particular good in offer they tend to buy it more frequently that when the same good is not in offer, however they do not increase the amount of goods bought instead they keep that number the same so they only take advantage of the offer itself and that is why that the company does not increase the physical volumen of the goods sold.