A product has to go through $4$ stages before it turns into a finished good. The outputs of $4$ stages in units per hour are given below:

Stage $1$: $15,$ Stage $2$: $15,$ Stage $3$: $12,$ Stage $4$: $15.$

Because of a labor shortage issue the only $8$ units of raw materials per hour could be passed through stage $3.$ The management hires an additional labor to increase the flow of raw material to $12$ to stage $3.$ The management is:

Question $4$ Answer

a$.$

Identifying Constraints

b$.$

Exploiting the elevation

c$.$

Elevate the bottleneck

d$.$

Exploiting the bottleneck