Nigeria Nightlight Company strives to maintain a capital structure that includes 36% debt and 10% preferred stock. If the pre-tax cost of debt financing (kd) is 6.1% annually, the cost of common equity (ke) is 9.5% annually, the company's marginal income tax rate is 23%, and the weighted average cost of capital (kA or WACC) is 7.5359% annually, what is the company's annual percentage cost of preferred stock (kp) financing? (Answers given are rounded to two decimal places.) O A. 9.29% B.2.10% OC. 0.72% OD.7.15% E. 18.95%