As the production planner for Xiangling Hu Products, Inc., you have been given a bill of material for a bracket that is made up of a base, $1$ spring, and $3$ clamps. The base is assembled from $2$ clamps and $2$ housings. Each clamp has $1$ handle and $2$ castings. Each housing has $2$ bearings and $2$ shafts. There is no inventory on hand. This exercise contains only parts b and c$.$ The product structure is as follows: Bracket Base $(1)$ Spring $(1)$ Clamp $(2)$ Housing $(2)$ Clamp $(3)$ Handle$(1)$ Casting$(2)$ Bearing$(2)$ jo$||||||$ Shaft$(2)$ Handle$(1)$ Casting$(2)$ b$)$ Determine the gross quantities needed of each item if you are to assemble $150$ brackets. Base: Spring Clamp: Housing: Handle: Casting: Bearing: Shaft: units $($enter your response as a whole number$).$ units $($enter your response as a whole number$).$ units $($enter your response as a whole number$).$ units $($enter your response as a whole number$).$ units $($enter your response as a whole number$).$ units $($enter your response as a whole number$).$ units $($enter your response as a whole number$).$ units $($enter your response as a whole number$).$