Dyson Inc. currently finances with 20.0% debt (i.e., wd=20% ), but its new CFO is considering changing the capital structure so w =74.5% by issuing additional bonds and using the proceeds to repurchase and retire common shares so the percentage of common equity in the capital structure (w c ) =1wd. Given the data shown below, by how much would this recapitalization change the firm's cost of equity? Do not round your intermediate calculations. (Hint: You must unlever the current beta and then use the unlevered beta to solve the problem.) a. 15.68% b. 13.55% c. 13.30% d. 12.54% c. 12.29%