Which of the following is NOT a type of content mentioned in the design principles?

The correct choice indicates that audio is not a type of content mentioned in the design principles. Design principles typically emphasize visual and textual content as primary elements used for communication and clarity in data representation. Images, tables, and text are essential components that help convey information effectively, organize data, and enhance user understanding of visual layouts.

In contrast, audio—while valuable in certain contexts, such as in multimedia presentations or lessons—does not fit within the standard categories of content primarily discussed in design principles. The focus of design principles is generally on visual elements that can be easily interpreted, navigated, and analyzed by users.