Sorensen Systems Inc. is expected to pay a $2.50 dividend at year end (D₁ = $2.50), the dividend is expected to grow at a constant rate of 5.50% a year, and the common stock currently sells for $80.00 a share. The before-tax cost of debt is 7.50%, and the tax rate is 40%. The target capital structure consists of 45% debt and 55% common equity. What is the companys WACC if all the equity used is from retained earnings?

	a.	6.77%
	b.	8.26%
	c.	7.31%
	d.	6.63%
	e.	5.75%