Vitafluid, a health drink, is available at all supermarkets. After research, the marketing team of the branddiscovered that 90 percent of its customers were people between the ages of 30 and 40.Only 10 percent of teenagers liked the drink; the rest disliked it because of its bitter flavor. To attract more teenagers, the brand made its packaging more appealing and modified the formula to make it sweeter. In this scenario, the teenage group can be referred to as a ________.