Wing Air, Inc. has a target capital structure of75% percent common stock and 25%percent debt. It's cost of equity is 20% percent and cost of debt is7% percent. The tax rate is 34% percent. What is Wing Air's weighted average cost of capital?

Common stock 75%

Debt 25%

Cost of equity 20%

Cost of debt 7%

Tax rate 34%

6.41%

16.16%

18.30%

13.85%