What is the main difference between islands and cells in manufacturing layouts?
a) Cells have minimal inventory between machines and produce one piece at a time, while islands have high work-in-process inventory.
b) Islands have minimal inventory between machines and produce one piece at a time, while cells have high work-in-process inventory.
c) Cells have high work-in-process inventory and produce multiple pieces at a time, while islands have minimal inventory between machines.
d) Islands have high work-in-process inventory and produce multiple pieces at a time, while cells have minimal inventory between machines.