A firm has common stock with a market price of $55 per share and an expected dividend of $2.81 per share at the end of the coming year. The dividends paid on the outstanding stock over the past five years are as follows: Year Dividend 1 $2.00 2 2.14 3 2.29 4 2.45 5 2.62 The cost of the firm's common stock equity is A) 15.4 percent. B) 4.1 percent. C) 5.1 percent. D) 12.1 percent.