The following information relates to the Atlantic Division of Ocean Enterprises: Interest rate on debt capital: 7.2% Cost of equity capital: 9.7% Market value of debt capital: $43 million Market value of equity capital: $77 million Income tax rate: 30% On the basis of this information, Atlantic's weighted-average cost of capital is: a. 8.03% b. 8.80% c. 7.37% d. 8.45% e. 7.05%