Which product type could be classified as an "idea"?

An idea in marketing typically refers to a concept or plan that serves as the foundation for more tangible products or services. In this case, a marketing campaign embodies a strategic approach aimed at achieving specific business objectives, such as raising brand awareness or promoting a new product. It represents an abstract concept that encompasses the overall message, target audience, and delivery methods rather than a physical item.

The other choices represent tangible products or experiences. A luxury car is a physical object that consumers can purchase and own, while a software application is a digital product with specific functionalities. A vacation package, too, is a collection of services (travel, accommodation, activities) but is ultimately a combination of tangible aspects that provide a service or experience. The key differentiating factor is that the marketing campaign stands out as a conceptual framework that guides business actions rather than being a tangible product itself.