Optimal Capital Structure Identify the correct statement from the following. A company's optimal capital structure refers to the best mix of debt and equity financing that will maximise its value. A company has an optimal capital structure when it has zero debt and is not risking its shareholders at all. A company's optimal capital structure refers to the mix of more debt than equity financing since debt is a cheaper source of financing. A company's optimal capital structure refers to the equal mix of debt and equity financing that will maximise its value