Create two stock portfolios, denoted A and B, each of which consists of ten (10) individual common stocks. Assume that each stock is equally weighted in each portfolio. Stocks in portfolio A must be from the same industry (at least the first two digits of each companys SIC (Standard Industrial Classification) code must be the same) and stocks in portfolio B must be from ten different industries. In total, you have to choose 20 (or 19. if you include one of portfolio As stocks in portfolio B) different individual stocks.