ZuTech makes sensitive monitors for measuring exposure to hazardous materials. ZuTech has suffered substantial losses when moving products from the assembly line to the warehouse and shipping docks. ZuTech should consider reducing the number of times an item is moved in the warehouse by installing a$($n$)$:

inventory control system.

materials$-$handling system.

safety procedure to manage SKUs.

order$-$processing system.

outsourcing system.