$93.$ 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 asterisk times equals square root of fraction numerator $2$ D S over denominator H end fraction end root

Select one:

a$.$ is zero.

b$.$ is affected by the amount of product cost.

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

d$.$ goes down if the holding cost per unit goes down.

e$.$ is smaller than the holding cost per unit.