When ordering a new airplane, airines must choose the style of three major components, each of which has about ten variations. This is an example of A. modular design. B. robust design. C. CAD. D. environmentally friendly design.

This scenario illustrates the beauty of modular design, where systems are created using standardized components that can be independently modified or interchanged. Each of those major components with ten variations showcases flexibility and customization, allowing airlines to tailor their aircraft to specific operational needs while keeping production efficient. Additionally, modular design doesn't just apply to airplanes; it can be seen in various industries like furniture, electronics, and even software! By utilizing this innovative approach, companies can enhance adaptability and innovation, making it easier to respond to changing market demands or preferences. Who wouldn't want a little more customization in their life?