24 Dorval Corporation uses no debt, its beta is 1.10, and its tax rate is 40%. However, the CFO is considering moving to a capital structure with 30% debt and 70% equity. If the risk-free rate is 5.0% and the market risk premium is 6.0%, by how much would the capital structure shift change the firm's cost of equity? Oa 1.93% ob 188% OC 1.70% Od 158%. e None of the above