Transworld Consortium Corp. is trying to identify its optimal capital structure. Transworld Consortium Corp. has gathered the following financial information to help with the analysis. Which capital structure shown in the preceding table is Transworld Consortium Corp.'s optimal capital structure? Debt ratio = 40%; equity ratio = 60% Debt ratio = 50%; equity ratio = 50% Debt ratio = 60%; equity ratio = 40% Debt ratio = 30%; equity ratio = 70% Debt ratio = 70%; equity ratio = 30% Consider this case: Globo-Chem Co. is an all-equity firm, and it has a beta of 1. It is considering changing its capital structure to 65% equity and 35% debt. The firm's cost of debt will be 8%, and it will face a tax rate of 35%. What will Globo-Chem Co.'s beta be if it decides to make this change in its capital structure? Now consider the case of another company