Assume that Larry's marginal tax rate is $24$ percent. If corporate bonds pay $10$ percent interest, what interest rate would a municipal bond have to offer for Larry to be indifferent between the two bonds?

$24\mathrm{.}00$ percent

$12\mathrm{.}00$ percent

$10\mathrm{.}00$ percent

$7\mathrm{.}60$ percent

None of the choices are correct