GMAT Critical Reasoning (CR) | Re: Director of TalMart: Our company provides a 90-day without-question re

Director of TalMart: Our company provides a 90-day without-question return policy on all products sold. Each month on an average, our outlets receive requests for returns on almost 20% of the sales made. It is clear that because of the ‘without question’ clause, our customers have no incentive to make wiser selections. If customers made better selections to begin with, then we would not see most of these products being returned.

Which of the following is required for the argument to hold?

A.