D Question 5 1 pts Allison Engines Corporation has established a target capital structure of 40 percent debt and 60 percent common equity. The current market price of the firm's stock is PO = $50.6; its last dividend was DO - $2.3, and its expected dividend growth rate is 6.9 percent. What will Allison's marginal cost of retained earnings, rs, be? O 11.26% 13.03% O 12.03% 11.76% O 12.53%