Final answer:
In an experience economy, offerings are designed to be memorable, providing unique and lasting impressions that are not interchangeable like the fungible goods option (1).
Step-by-step explanation:
In an experience economy, the nature of the offering is best described as memorable. The concept of something being fungible, like dollars or barrels of oil, implies that items are interchangeable and have equal value. However, in the context of an experience economy, the focus is on creating unique, personalized experiences that resonate with the consumer on a personal level.
These experiences cannot be mutually substituted, as each is unique to the individual who encounters it. Instead of being fungible, the experiences are designed to be memorable, providing lasting impressions that differentiate them from other economic offerings.