Which of the following is a key principle of Universal Design?

Flexibility is a key principle of Universal Design because it allows spaces and products to accommodate a wide range of individual preferences and abilities. This principle emphasizes that design should be adaptable, allowing users to interact with environments or products in ways that suit their personal needs. For instance, furniture that can be adjusted in height or configurations that can be easily modified for different users exemplifies flexibility. This adaptability ensures inclusivity, enabling people of various ages, abilities, and circumstances to use and enjoy designed environments.

The other choices do not align with the ethos of Universal Design in the same way. Exclusivity implies limiting access or usability, which contradicts the intention of creating inclusive environments. Luxury focuses on high-end or premium design elements, which may not necessarily consider the diverse needs of all users. Complexity suggests intricate designs that could hinder usability, contradicting the goal of simplicity and ease of use central to Universal Design principles.