Milton is the sales manager of a cosmetics company that offers a wide range of face creams, lipsticks, and eye makeup. some of the products are sold to wholesalers and distributors, while others are sold directly to end-users. milton decides to divide his company's vast customer base into distinct segments so that the company's salespeople can specialize in one line of business only. to carry out this process, it is necessary for milton to possess sound _____.