Calculate the​ after-tax return of​ a(n) 10.54 ​percent, 20-year,​ A-rated corporate bond for an investor in the 10 percent marginal tax bracket. Compare this yield to​ a(n) 6.69 ​percent, 20-year,​ A-rated, tax-exempt municipal​ bond, and explain which alternative is better. Repeat the calculations and comparison for an investor in the 33 percent marginal tax bracket. Question content area bottom Part 1 The​ after-tax return of the 10.54​%, ​20-year, A-rated corporate bond for an investor in the 10​% marginal tax bracket is

enter your response here​%. ​ (Round to two decimal​ places.) Part 2 Compare this yield to the 6.69​%, ​20-year, A-rated,​ tax-exempt municipal bond and explain which alternative is better.  ​(Select the best answer​ below.) A. The after dash tax yield of 9.49 % for the corporate bond is a better alternative than the 6.69 % tax dash free municipal bond at the 10​% tax rate. B. The 6.69 % tax dash free municipal bond is a better alternative than the after dash tax yield of 9.49 % for the corporate bond at the 10​% tax rate. Part 3 The​ after-tax return of the 10.54​%, ​20-year, A-rated corporate bond for an investor in the 33​% marginal tax bracket is

enter your response here​%. ​ (Round to two decimal​ places.) Part 4 Repeat the calculations and comparison for an investor in the 33​% marginal tax bracket.  ​(Select the best answer​ below.) A. The after dash tax yield of 7.06 % for the corporate bond is a better alternative than the 6.69 % tax dash free municipal bond at the 33​% tax rate. B. The 6.69 % tax dash free municipal bond is a better alternative than the after dash tax yield of 7.06 % for the corporate bond at the 33​% tax rate.