Which of the following is most essential to any definition of marketing? demand management the production concept customer relationships making a profit When backed by buying power, wants become: social needs demands physical needs exchanges The art and science of choosing target markets and building profitable relationships with them is called: selling segmentation positioning marketing management Which of the following best explains why consumers have greater power and control in today's marketplace? The production concept and competition have lowered prices. Through new communication technologies, customers have more access to information and more methods of sharing their opinions with other customers. Implementation of the product concept has resulted in continually improving products