Which of the following is an example of applying Anthropometrics in design?

Applying anthropometrics in design involves creating products that accommodate the physical dimensions and comfort needs of users. The correct answer focuses on ensuring the back of a chair supports the spine, which relates directly to the study of human body measurements and the ergonomic considerations that enhance comfort and health.

When designing items like chairs, understanding average human heights, postures, and the way people use furniture is crucial. The aim is to provide support that aligns with the natural curves and requirements of the human body, thereby minimizing discomfort and promoting good posture.

In contrast, using bright colors in a product does not involve considerations of human dimensions or comfort, as it relates more to aesthetics. Focusing on reducing production costs pertains to economic factors rather than user-centered design principles. Similarly, choosing energy-efficient materials concerns sustainability and environmental impact, rather than the physical interaction between a user and the product. Therefore, ensuring the back of a chair supports the spine best exemplifies the application of anthropometrics in design.