Dana intends to invest $52,000 in either a Treasury bond or a corporate bond. The Treasury bond yeids 5 petcent before tax and the corporate bond yields 6 percent before tax. Required: a-1. Assuming Dana's federal marginal rate is 24 percent and her marginal state rate is 5 percent, which of the two options should she choose? Assume that Dana itemizes deductions. 0-2. How much interest after-tax would Dana earn by investing in the corporote bond? Note: Do not round intermediate calculotions and round your finol onswer to the nearest whole dollar amount. 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? Assume that Dana itemizes deductions b-2. How much interest after-tax would Dana earn by investing in the corporate bond as per requirement b-1? Note: Do not found intermediate calculations ond round your final answer to the nearest whole doller amount