A product has a demand of 4000 units per year. Ordering cost is $20, and holding cost is $4 per unit per year. The EOQ model is appropriate. The cost-minimizing solution for this product will cost ________ per year in total annual inventory (holding and setup) costs. Group of answer choices Zero; this is a class C item. $800 $400 $1200 Cannot be determined because the unit price is not known.