2. Which of the following statements is NOT correct? a. Cost of equity could be estimated by the Capital Asset Pricing Model. b. Cost of debt is typically the yield to maturity of the firms bonds. c. WACC is usually used as discount rate when making capital budgeting decisions. d. After-tax cost of debt is typically lower than pre-tax cost of debt. e. After-tax cost of debt is typically higher than pre-tax cost of debt