Answer this multiple choice questions: A production line is to be designed for a job with three tasks. The task times are $\mathrm{.}4$ minutes, $1\mathrm{.}2$ minutes, and $\mathrm{.}5$ minutes. The maximum cycle time in minutes is:

$($a$)3$

$($b$)1\mathrm{.}2$

$($c$)2\mathrm{.}1$

$($d$)0\mathrm{.}4$

$($e$)0\mathrm{.}5$