Which of the following statements is FAL SE? a. After a firm finds a positive NPV project using the WACC method, one way to keep the debtequity ratio constant is by borrowing more debts. b. The WACC method can be used to evaluate a new project if the new project has a similar level of risk compared to the rest of the firm. c. In the Wacc method, we value a project based on its free cash flow, which is computed by ignoring interest and debt payments: d. Firms with iower tax rates always have higher WACC