What is a key distinction of personal selling in the promotion mix?

The correct choice emphasizes that personal selling involves direct interaction between the salesperson and the customer. This aspect is fundamental to personal selling, as it differentiates this method from other forms of promotion that are typically more impersonal, such as advertising or public relations.

In personal selling, the communication is tailored and individualized, allowing the salesperson to respond to specific customer needs, engage in dialogue, and build relationships. This interaction often leads to a better understanding of the customer's preferences, enabling the salesperson to effectively address objections and close sales. Personal selling is characterized by its focus on personal relationships, rapport-building, and the ability to offer customized solutions, which are critical for high-value products or services.

Other approaches in the promotion mix, like mass advertising or digital marketing, tend to reach a broad audience without the opportunity for personalized interaction, which is a distinct advantage of personal selling.