Finance please help :) A and B are correct. Missing C, and D

(Individual or component costs of capital) Compute the cost of capital for the firm for the following: a. Currently bonds with a similar credit rating and maturity as the firm's outstanding debt are selling to yield 7.03 percent while the borrowing firm's corporate tax rate is 34 percent. b. Common stock for a firm that paid a $1.06 dividend last year. The dividends are expected to grow at a rate of 5.2 percent per year into the foreseeable future. The price of this stock is now $25.08. c. A bond that has a $1,000 par value and a coupon interest rate of 11.5 percent with interest paid semiannually. A new issue would sell for $1,153 per bond and mature in 20 years. The firm's tax rate is 34 percent. d. A preferred stock paying a dividend of 6.2 percent on a $106 par value. If a new issue is offered, the shares would sell for $85.88 per share. a. The after-tax cost of debt debt for the firm is 4.64%. (Round to two decimal places.) b. The cost of common equity for the firm is 9.64%. (Round to two decimal places.) c. The after-tax cost of debt for the firm is 7.23%. (Round to two decimal places.)