$(1$ pt$)$ Using the assembly$-$line balancing procedure, which of the following is the required cycle time in minutes per unit if the daily production time is $480$ minutes and the required daily output is $50$ units?

A$.0\mathrm{.}104$

B$.50$

C$.9\mathrm{.}6$

D$.480$

E$.$ Cannot be determined from the information above