Q$1$: $400,$ Q$2$: $850,$ Q$3$: $1,000,$ Q$4$: $450,$ Q$5$: $925,$ Q$6$: $1,100.$ Previous quarter's output was $500$ units.

Initial inventory is $250$ units.

Overtime capacity for the planning period is $200$ units$/$quarter$.$

The manufacture's subcontractor can supply $1000$ units$/$quarter$,$ if needed.

demand.

b$.$ Produce utilizing a level strategy by producing at a rate of the $570$ for the planning period. This will be Plan B$.$ What is the cost of the plan? $[$ Select $]$

Was there a need to carry over inventory throughout the planning period? $[$ Select$]$

c$.$ Produce utilizing a mixed strategy producing $350$ units per quarter, then utilizing overtime and subcontracting, if needed. This will be Plan C$.$ What is the cost of this plan?

d$.$ Based on cost$,$ which plan should be selected?