Stock Beta A Suppose you are the money manager of a $5 million investment fund. The fund consists of four stocks with the following investments and betas: Investment A $ 450,000 1.50 500,000 (0.50) C 1,650,000 1.25 2,400,000 0.75 B D If the markets required rate of return is 8% and the risk free rate is 4%, what is the fund's required rate of return? @ 6.24% 3.57% 10.29% 7.43%