Suppose that TW, Inc. has a capital structure of 25 percent equity, 15 percent preferred stock, and 60 percent debt. If the before-tax component costs of equilty, preferred stock and debt are 13.5 percent, 9.5 percent and 4 percent respectively, what is TW's WACC If the firm faces an average tax rate of 21 percent? Multiple Choice 219 percent 6.70 percent 2.90 percent 90 percent