What is the first step in the graphical method for aggregate$$ planning?

Part $2$

A$.$

Find labor$$ costs, hiring and layoff$$ costs, and inventory holding costs.

B$.$

Consider company policy that may apply to the workers or to stock levels.

C$.$

Determine the demand in each period.

D$.$

Determine capacity for regular$$ time, overtime, and subcontracting each period.