Which wholesaler's channel function is demonstrated when a wholesaler's sales force helps a manufacturer to reach many small customers at a low cost?

The wholesaler's channel function demonstrated in this scenario is known as "sales support" or "sales assistance." By employing a sales force, the wholesaler effectively bridges the gap between the manufacturer and numerous small customers, allowing the manufacturer to expand its reach efficiently. This approach helps reduce costs associated with direct sales efforts while ensuring that smaller customers receive the attention and service they need. Overall, it enhances distribution efficiency and market penetration for the manufacturer.