Which of the following is a consequence of economies of scale according to the economic order quantity model?
A. If a product is not popular, its total economic order quantity costs are a small portion of the purchase cost.
B. If the demand rate for a product is high, its total economic order quantity costs are a large portion of the purchase cost.
C. More product variety always results in higher profit.
D. More product variety does not always result in higher profit.
