What concept is often described as the "visual hierarchy" in design?

Visual hierarchy is a fundamental concept in design that refers to the arrangement of elements in a way that clearly conveys their importance to the viewer. It involves organizing elements such as images, text, and graphics in a manner that guides the viewer's eye through the design, making it easier for them to navigate and understand the content. By varying size, color, contrast, and placement, designers can create a structured flow, allowing the most critical information to stand out and be noticed first.

This concept is essential in directing attention, fostering engagement, and enhancing the overall effectiveness of a design, whether it be in print, web design, or any other medium. Through thoughtful application of visual hierarchy, designers can ensure that the intended message is communicated clearly and effectively.

While the other choices mention various design elements, they do not specifically address the importance of arranging elements to convey a sense of importance and guide viewer interaction, which is at the core of visual hierarchy.