The Unlevered Cost of Capital Is

The unlevered cost of capital is:

A) the cost of capital for a firm with no equity in its capital structure.
B) the cost of capital for a firm with no debt in its capital structure.
C) the interest tax shield times pretax net income.
D) the cost of preference shares for a firm with equal parts debt and ordinary equity in its capital structure.
E) equal to the profit margin for a firm with some debt in its capital structure.