3. Assume you manage a risky portfolio with an expected rate of return of 15% and a standard deviation of 25%. The T-bill rate is 6%. If your client invests 80% of a portfolio in your fund and 20% in a T-bill money market fund. What is the Sharpe ratio of your client's portfolio? A) $0.66 B) $0.60 C) $0.36 D) $0.31 E) none of the above