What type of product presentation technique does door-to-door selling emphasize?

The type of product presentation technique that door-to-door selling emphasizes is in-home product demonstrations and face-to-face sales. This method allows salespeople to engage directly with potential customers in their own environment, demonstrating the product's value and benefits in a personal and practical setting. By being physically present, the salesperson can tailor the presentation to the specific needs and preferences of the customer, answer questions in real-time, and handle objections and concerns immediately.

This technique is particularly effective because it fosters trust and rapport, as the customer can see the product in action within their own home. The personal interaction also enables the salesperson to gauge the customer's reactions and adjust their approach accordingly, enhancing the likelihood of a sale. The in-home environment provides an informal atmosphere where customers may feel more comfortable discussing their needs and considering a purchase.

The other options, such as virtual demonstrations or discount offers online, do not capture the essence of the door-to-door approach, which is fundamentally about personal interaction and real-life demonstrations.