Which of the following defines Alternative text (Alt text)?

Alternative text, commonly referred to as Alt text, is primarily used to describe images in a way that can be understood by users who are visually impaired or for situations where the image cannot be displayed. The correct definition of Alt text aligns closely with its purpose, which is to provide a textual description that helps convey the meaning of an image through screen readers or when images fail to load.

In this context, the accurate definition emphasizes that Alt text serves as an information tag that enhances accessibility when dealing with visual content. While Alt text is specifically associated with images rather than tables, headers, or footnotes, it can be incorrectly assumed that any information tag related to graphics or layout elements falls into this category. However, Alt text is distinct in its focus on images, ensuring users receive appropriate context regardless of their ability to see the content.