Answer:
A. Wholesaling
Explanation:
Wholesaling can be defined as when a producer/seller sells goods in large quantities at low prices to be sold again by the buyer for profit. It is the sale of goods to a retailer in bulk at lower prices. The retailer then repackage it (amongst other activities) and resell it in smaller quantities and higher prices.
When the Dailes restaurant sells to other restaurants it's wholesale because those restaurants then resells it. When the sell to their customers, it is retail.