In a process there are $20$ tasks, the longest task time is $5$ minutes. The sum of all $20$ task times is $26$ minutes. Available operating time per day is $650$ minutes. If the desired output rate is $325$ units per day then what is the cycle time per unit?

$2\mathrm{.}6$ Min$/$unit

$2\mathrm{.}0$ Min$/$unit

$0\mathrm{.}5$ Min$/$unit

$25$ Min$/$unit