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Pata Negra S.A. has a debt-to-equity ratio of 50%. Suppose that Pata Negra's equity cost of capital is 8%, its debt cost of capital is 3%, and the corporate tax rate is 35%. What is Pata Negra's after-tax weighted average cost of capital? A. 4.98% B. 5.5% C. 5.98% D. 6.33% E. None of the proposed values is close to the correct solution