GenX has a target capital structure of 40 percent common stock, 5 percent preferred stock, and 55 percent debt. Its cost of equity is 22 percent, the cost of preferred stock is 8.5 percent, and the pre-tax cost of debt is 8 percent. What is the firm's WACC given a tax rate of 35 percent?

( )	a.	9.87 percent
( )	b.	10.16 percent
( )	c.	10.90 percent
( )	d.	12.09 percent
( )	e.	15.17 percent