An investor purchases one municipal and one corporate bond that pay rates of return of 8% and 10%, respectively. If the investor is in the 20% marginal tax bracket, his or her after-tax rates of return on the municipal and corporate bonds would be ________ and ______, respectively.

	A.	8%; 10%
	B.	8%; 8%
	C.	6.4%; 8%
	D.	6.4%; 10%