Which of the following best defines 'design flaws'?

Design flaws refer to imperfections in an object or machine that can affect its performance, usability, or safety. When a product is designed, certain standards and expectations are set, and flaws can arise from various factors such as material choices, structural issues, or how components fit together. Recognizing these imperfections is critical for improving product reliability, meeting customer needs, and ensuring safety. The other options may address aspects of product quality, such as aesthetics or functionality, but they do not capture the essence of what constitutes a design flaw, which is inherently about imperfections or deficiencies in the design itself.