Which of the following statement best describes the optimal capital structure? Select one: O a. The optimal capital structure is the mix of debt, equity, and preferred stook that maximizes the company's earnings per share EPS). O b. The optimal capital structure is the mix of debt, equity, and preferred stock that minimizes the company's stock price O C. The optimal capital structure is the mix of debt, equity, and preferred stock that minimizes the company's weighted average cost of capital (WACC). d. The optimal capital structure is the mix of debt, equity, and preferred stock that maximizes the company's weghted average cost of capital (WACC). #8