Based on a balance of $$213,380\mathrm{.}00,$ using the rule of $72,$ how long will it take for the balance

to reach $$853,520\mathrm{.}00$ at a rate of $2\mathrm{.}00\%.$

$($a$)72\mathrm{.}00$ years

$($b$)7200\mathrm{.}00$ years

$($c$)36\mathrm{.}00$ years

$($d$)3600\mathrm{.}00$ years