An investor purchases one municipal bond and one corporate bond that rates of return of 5% and 6.5%, respectively. If the investor is in the 20% tax bracket, his after-tax rates of return on the municipal and corporate bonds would be, respectively, _____.

5% and 6.5%

5% and 5.20%

4.00% and 6.5%

6.00% and 5.20%