13 In general, which of the following rankings, from highest to lowest cost, is most accurate? Sul of question Select one: a cost of debt, cost of preferred stock, cost of new common stock, cost of retained earnings Ob cost of new common stock, cost of retained earnings, cost of preferred stock, cost of debt ol cost of preferred stock, cost of new common Cock, cost of retained earnings cost of debt a cost of new common stock cost br preferred stock, cost of debt, cost of retained earnings n 14 Investment A has an expected return of 15% per year, while investment B has an expected return of 12% per year A rational investor will choose ed out of Select one: a. Investment A only if the standard deviation of returns for A is higher than the standard deviation of returns for B question 0 b. Investment A because of the higher expected return al Investment Af A and B are of equal risk DA di investment B because a lower return means lower risk