Answer:
B) why both discrepancies of quantity and assortment occur
Step-by-step explanation:
The assortment and quantity of products that the publisher's customers want sometimes may be very different than the assortment and quantity that the companies would be willing to produce in order to lower its costs and increase its profits.
For example, the publisher would save money if it could print 10,000 books, but its clients only buy a few books at a time.