Which of the following statements regarding capital structure is (are) correct when capital markets are imperfect? Please consider all types of imperfections covered in the course materials. Choose all correct answer(s) Firms with high levels of tangible assets (like airlines) are likely to have low financial distress costs because the assets can be liquidated for close to their full value At the optimal level of debt, the firm uses up all tax benefits of debt (or borrow until interest expenses equate to EBIT) As a firm borrows more, its financial distress cost decreases first and starts to increase after the firm's leverage exceeds the optimal level Firms with high R&D expenditures and future growth opportunities typically maintain low debt levels