7-13. Portfolio Required Return Suppose you are the money manager of a $4 million investment fund. The fund consists of four stocks with the following investments and betas: Stock Investment Beta A B $ 400,000 600,000 1,000,000 2,000,000 1.50 (0.50) 1.25 0.75 D If the market required rate of return is 14% and the risk-free rate is 6%, what is the fund's required rate of return