Which of the following bonds is considered "funded"?

Select the answer

$3$ year $2\mathrm{.}50\%$ tax and revenue anticipation note

$60$ day T$-$bill yielding $1\mathrm{.}70\%$

$22$ year $8\mathrm{.}40\%$ Gentry Co$.$ debenture

$26$ year $4\mathrm{.}40\%$ general obligation bond