Questions 3 and 4 are based on the following example: a company has a cost of capital (WACC) equal to 7.8%. The cost of equity is 9%, the cost of debt is 4%, the tax rate is 30%, and debt represents 20% of the value of the firm (D/V = 20%).

Questions 3 and 4 are based on the following example: a company has a cost of capital (WACC) equal to 7.8%. The cost of equity is 9%, the cost of debt is 4%, the tax rate is 30%, and debt represents 20% of the value of the firm (D/V = 20%).

Suppose the company increases D/V to 30% by issuing debt and repurchasing stock. Which of the following options is correct?