单选题 The following information pertains to a company's stock: The current stock price is $ 45 per share. Earnings and dividends have been growing at an annual rate of 8%. The company's earnings per share during the past year was $ 5. The dividend payout ratio is 40%. The company pays a 7% flotation cost if it sells new shares of stock. Based on the dividend discount model, the stockholders' required rare of return is.