Answer: b. The optimal capital structure simultaneously maximizes stock price and minimizes the WACC
Explanation:
The optimal capital structure is simply defined as the capital structure of a company that's made up of debt and equity which helps a business in achieving its aim.
The optimal capital structure simultaneously maximizes stock price and minimizes the WACC. As economic agents always look out to maximize stock price, it should be noted that this can be achieved with a cost of capital that's at its minimum.