Which source of trust shows that the salesperson has already delivered resul longevity demonstration authority familiarity

The correct answer is demonstration.<br /><br />Demonstration refers to the act of showing or proving something. In the context of sales, demonstration is a source of trust that shows the salesperson has already delivered results. By demonstrating the effectiveness and benefits of their product or service, the salesperson can build credibility and trust with potential customers. This can involve providing evidence, testimonials, or live demonstrations of the product in action. By showcasing the tangible results and value they can provide, the salesperson can establish themselves as a reliable and trustworthy source.