A work cell has four stations, and each unit produced at the cell needs to be processed by all of the stations in series. $($The same unit cannot be worked on by four stations simultaneously.$)$ The capacity of each station is $($Station #$,$ # of Machines, units per hour$),($S$1,1,8),($S$2,1,5),($S$3,1,12),($S$4,1,10).$ Which station is the bottleneck machine?

Group of answer choices