B. Vortex Corporation has a target capital structure of 40 percent common stock, 10 percent preferred stock, and 50 percent debt. Its cost of equity is 013 percent, the cost of preferred stock is 6 percent, and the cost of debt is 5 percent before adjusting for taxes. The relevant tax rate is 21 percent. What is Vortex's WACC? a. It is less than 2%. b. It is between 2 and 4%. C. It is between 4 and 8%. d. It is more than 8%. in Droblem