You are trying to estimate the cost of capital for Spyriakos Shipping, and have collected the following information: - The firm has $ 800 million in interest-bearing debt on its books, on which it pays $ 45 million in annual interest expenses. The weighted average maturity of the debt is 5 years. The bond rating for the firm is A-, and the default spread over the T.Bond rate is 2.5% - There are 250 million shares outstanding, trading at $ 12 a share. -The unlevered beta for other shipping firms is 0.90. - The ten-year T.Bond rate is 5.2% and the market risk premium is 5.17%. The marginal tax rate is 40% Estimate WACC. O a. 7.45% O b. 10.58% O c. 9.37% O d. 18.69%