Assume that you manage a risky portfolio with an expected rate of return of 17% and a standard deviation of 20%. The T-bill rate is 8.6%. Your risky portfolio includes the following investments in the given proportions: Stock A Stock B Stock C 23% 42% 35% Suppose a client decides to invest in your risky portfolio a proportion (y) of his total investment budget with the remainder in a T-bill money market fund so that his overall portfolio will have an expected rate of return of 15.32%. Required: (a)What is the proportion y? (Round your answer to 1 decimal place.) Proportion (b)What are your client's investment proportions in your three stocks and the T-bill fund? (Round your answers to 2 decimal places. Omit the "%" sign in your response.) Security Investment Proportions T-Bills Stock A Stock B Stock C % % % % (c) What is the standard deviation of the rate of return on your client's portfolio? (Round your answer to 2 decimal places. Omit the "%" sign in your response.) Standard deviation %