Assume that you manage a $10.00 million mutual fund that has a beta of 1 .05 and a 9.50% required return. The risk- free rate is 2.20%. You now receive another $14.50 million, which you invest in stocks with an average beta of 0.65. What is the required rate of return on the new portfolio? (Hint: You must first find the market risk premium, then find the new portfolio beta.) Do not round your intermediate calculations. a. 7.31% b. 6.31% . 6.56% O d. 7.82% Oe, 6.81%