Which of the following reflects the marketing concept philosophy?

<p><strong>(a) “You won’t find a better deal anywhere”.</strong></p> <p><strong>(b) “When its profits nurse’s customers needs, profits will always win out.”</strong></p> <p><strong>(c) “We are in the business of making and selling superior products.”</strong></p> <p><strong>(d) “We don’t have a marketing department, we have a customer department”.</strong></p>