Using the assembly-line balance procudure, which of the following is the theoretical minimum number of workstations if the task times for the eight tasks that make up the job are 420, 240, 420, 480, 540, 240, 180 and 360 seconds, and the cycle time is 8 minutes?
a) 360
b) 54
c) 6
d) 83
e) 162