The company's stock sells for $30 per share, its last dividend (Do) was $2.0, and its growth rate is a constant 6 percent. The flotation cost is 10.0% of market value. What is the cost of common stock, rs, when they consider for calculation of the cost of capital (external equity)? 0 17.78% 8.69% 13.85% 11.84% O 12.94%