You are trying to evaluate whether Adam plc, a UK based firm, has excess debt capacity. In 2019, Adam plc had 12.2 million shares outstanding at 21,000p per share and debt outstanding at 3 billion (book as well as market value). The debt has a rating of B and carries a cost of debt of 10.12%. In addition, the firm had leases outstanding, with annual lease payments anticipated to be 150million. The beta of the stock is 1.26. The risk-free rate is 6.12%. The market risk premium is 5.5%. (a) Estimate the current debt ratio for Adam plc. (3 Marks) (b) Estimate the current cost of capital. (2 Marks) (c) Estimate the current weighted average cost of capital (WACC). (2 Marks) (d) Based on the 2019 operating income, the optimal debt to total capital ratio is computed to be 30%, at which point the rating will be BBB, and the new cost of debt is 8.12%. Estimate the WACC. (5 Marks) (Total Marks 12)