Bosio Inc.'s perpetual preferred stock sells for $85.00 per share, and it pays an $8.50 annual dividend. If the company were to sell a new preferred issue, it would incur a flotation cost of 4.00% of the price paid by investors. What is the company's cost of preferred stock for use in calculating the WACC?

a. 8.75%

b. 12.81%

c. 11.35%

d. 8.44%

e.10.42%