Concept:Retailers are the final link in the chain of distribution, connecting wholesalers to consumers.
Explanation:The major function of a retailer is to purchase goods in large quantities from wholesalers and then sell them in small, affordable units to final consumers.
This process is known as breaking bulk.
Retailers also provide convenience by stocking goods close to consumers, offering after-sales services, and sometimes giving product information.
Option A is incorrect because retailers usually receive credit from wholesalers, not grant them credit.
Option C is not their major direct function, as their activities may actually add to distribution costs.
Option D is a marketing role, not the primary function of a retailer.
Therefore, the key distinguishing role is breaking bulk and selling in small units.
Answer:B. break bulk and sell products in small units.