Which one of the following is NOT a reason why we reorganize a firm's financial statements before valuing the firm? OA Have a better measure of operating performance that is free of the impact of capital structure on firm value. OB Balance sheet mixes together operating assets, nonoperating assets, and sources of financing. The return on nonoperating assets are often quite different from the return on operating assets, which prevents us from a clean measure of a firm's operating performance. OC. The income statement combines operating profits, interest expense, and income from other nonoperating items. Thus, the return on equity and the return on assets are not clean measures of a firm's operating performance. OD. All of the above are the reasons why we reorganize a firm's financial statements