You have a portfolio which is comprised of 55 percent of stock A and 45 percent of stock B. What is the expected rate of return on this portfolio? A 9.67 percent B. 9.88 percent C. 10.03 percent D. 11.79 percent E. 12.40 percent Stock X has a standard deviation of 21 percent per year and stock Y has a standard deviation of 6 percent per year. The correlation between stock A and stock B is .38. You have a portfolio of these two stocks wherein stock X has a portfolio weight of 42 percent. What is your portfolio standard deviation? A. 8.89 percent B. 9.85 percent C. 10.64 percent D. 11.84 percent E. 12.92 percent