If the actual order quantity is the economic order quantity in a problem that meets the assumptions of the economic order quantity model shown$$ below, the average amount of inventory on$$ hand:

$$Q$*=$ StartRoot StartFraction $2$ DS Over Upper H EndFraction EndRoot

Part $2$

A$.$

is smaller than the holding cost per unit.

B$.$

is zero.

C$.$

goes down if the holding cost per unit goes down.

D$.$

goes down if the setup cost per order goes up$.$

E$.$

is$$ one$-$half of the economic order quantity.