Answer:
The answer is: Product Differentiation
Step-by-step explanation:
This is a marketing strategy focused on differentiating your product from the competition. It highlights the good qualities of the products it sells: healthy, sustainably grown vegetables, vegan food. By highlighting its good qualities, Amy´s drive thru stands out from the rest of the competing restaurants.
This restaurant uses a vertical differentiation strategy because it highlights that it sells a better product (more healthy, etc.) and at the same time it costs more because it is a better product.