You have developed the following simple product structure of items needed for your gift bag for a rush party for prospective pledges in your organization. You forecast $200$ attendees. Assume that there is no inventory on hand of any of the items. Explode the bill of material $($BOM$).$ J K $(2)$ L $(3)$ M$(4)$ How many of L is needed? $1\mathrm{.}2003006009001800$