Final answer:
Strategic alliances among airlines are an example of the Partnership element in the marketing mix, not to be confused with place product packaging which refers to physical location aesthetics.
Step-by-step explanation:
The growing number of strategic alliances among airlines is an example of the use of the marketing mix element of Partnership. The concept of place product packaging described in the reference material relates primarily to how physical locations and their corresponding aesthetic elements can condition customers for repeat visits. However, it doesn't directly answer the question. Instead, strategic alliances align with the Partnership aspect of the marketing mix, where companies work together to achieve broader reach, efficiency, or capitalize on shared markets, rather than only the physical and visual components of a location.