a Q7(12 marks). Assuming that you manage a risky portfolio with an expected rate of return of 20% and a standard deviation of 17%. The T-bill rate is 4%. Your client chooses to invest 30% of a portfolio in your fund and 70% in a T-bill money market fund. (a) What is the expected return and standard deviation of your client's portfolio? (b) Suppose your risky portfolio includes the following investments in the given proportions, what are the investment proportions of your client's overall portfolio, including the position in T-bills? Stock A: 20% Stock B: 30% Stock C: 50% (c) What is the reward-to-volatility ratio (S) of your risky portfolio and your client's overall portfolio? (d) Draw the CAL of your portfolio on an expected return/standard deviation diagram. What is the slope of the CAL? Show the position of your client on your fund's CAL