Linda plans to invest in a portfolio which comprises an equity (risky) fund and a T-bill money market fund. The equity fund invested 60% in stock A and 40% in stock B. The expected return of stock A is 26%. The expected return of stock B is 12%. The variance of the equity fund is 8.41%. T-bill rate is 3%. If Linda's degree of risk aversion (or price of risk) is 2.8, what proportion, y, of the total investment should be invested in the equity fund? A. 21% B. 74% C. 87% D. 70%