You manage a risky portfolio with an expected rate of return of 12% and a standard deviation of 28%. The T-bill rate is 2%. Stock A 25% Stock B 32% Stock C 43% Suppose that your client decides to invest in your portfolio a proportion y of the total investment budget so that the overall portfolio will have an expected rate of return of 10%. Required: What is the proportion y? What are your clients investment proportions in your three stocks and the T-bill fund? What is the standard deviation of the rate of return on your clients portfolio