Which of the following is not one of the graphical method steps?

a) Determine the demand in each period.

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

c) Find labor costs, hiring and layoff costs, and inventory holding costs.

d) Construct the transportation table.

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

f ) Develop alternative plans and examine their total costs.