19. You own the following portfolio of stocks. What is the portfolio weight of stock C? Number Stock of Shares 500 200 600 100 Price per Share $14 $23 $18 $47 A. 39.85 percent B. 42.86 percent C. 44.41 percent D. 48.09 percent E. 52.65 percent 20. What is the variance of the returns on a portfolio that is invested 60 percent in stock S and 40 percent in stock T? State of Economy Boom Normal Probability of State of Economy 20% 80% Returns if State Occurs Stock S Stock T 17% 7% 13% 10% A. .000017 B. .000023 C. .000118 D. .000136 E. .000161