McKesson Company Provides Health Care Products to Pharmacies

McKesson Company provides health care products to pharmacies. For example, it purchases bandages, gauze, antibacterial cream, and ointments (or anything else you would need to treat a cut or scrape) from a variety of different manufacturers. Its goal is to provide each pharmacy with every item a customer might want to treat a cut. What is McKesson overcoming to aid consumers?

A) spatial discrepancy
B) discrepancy of quantity
C) discrepancy of assortment
D) discrepancy of possession