You have invested 23 per cent of your portfolio in Homer, Ltd., 18 per cent in Marge Co., and the rest of in Bart Resources. What is the expected return of your portfolio if Homer, Marge, and Bart have expected returns of 1.6 per cent, 12.1 per cent, and 15.4 per cent, respectively? (as a percentage to two decimal places; eg 2.881% is 2.88 )) a. 12.13% b. 11.63% c. 11.92% d. 2.55%