Market segmentation means that marketers divide the overall market of a product into the Market classification process for several consumer groups (buyer groups). By definition, which of the following is not a market segment? ['Divide consumers into traditional, trendy, frugal, luxury and other consumer groups.', 'Dividing consumers into urban consumer groups, small town consumer groups, and rural consumer groups.', 'Consumers are divided into elderly male consumer groups, middle-aged male consumer groups, and young male consumer groups.', 'Dividing products into clothing, shoes and hats, home appliances, cosmetics, food, etc.']