Need help with Finance Question, read it carefully and check your answer please. Thank you.

A 10-year corporate bond has an annual coupon of 9 percent ( $45 paid semiannually) and a price of $1,033.24, while a 10-year municipal bond has an annual coupon of 5 percent ( $25 paid semi-annually) and a price of $925.61. Given this information, determine what your tax rate must be so that both of these bonds have the same after-tax yield. 29.41% 30.23% 28.57% 26.83% 27.71%