Explain please

Question 19 Consider the following information relating to Pinder Ltd: 10% p.a. 30% 80% Before-tax cost of debt Statutory corporate tax rate Proportion of corporate tax reclaimed by Pinder Ltd shareholders After-tax cost of equity Market value of equity Market value of debt Market value of assets 15% p.a. $10m $10m $20m Which of the following is closest to the company's after-tax cost of debt capital? a) 7% p.a. b) 9.4% p.a. c) 11% p.a. d) 12.2% p.a. e) Need more information