Dana intends to invest $50,000 in either a Treasury bond or a corporate bond. The Treasury bond yields 5 percent before tax, and the corporate bond ylelds 6 percent before tax Assume Dana's federal marginal rate is 24 percent and she itemizes deductions. Required: a-1. Assuming Daria's marginal state rate is 5 percent, which of the two options should she choose? a-2. How much interest after-tax would Dana earn by investing in the corporate bond? b-1. If she were to move to another state where her marginal state rate would be 10 percent, which of the two options should she choose? b-2. How much interest after-tax would Dana earn by investing in the corporate bond as per requirement b-1? Complete this question by entering your answers in the tabs below. Assuming Dana's marginal state rate is 5 percent, which of the two options should she choose? How much interest after-tax would Dana earn by investing in the corporate bond? Note: Do not round intermediate calculations and round your final answer to the nearest whole dollar amount. Complete this question by entering your answers in the tabs below. If she were to move to another state where her marginal state rate would be 10 percent, which of the two options should she choose? How much interest after-tax would Dana earn by investing in the corporate bond as per requirement b-1? Note: Do not round intermediate calculations and round your final answer to the nearest whole dollar amount