The correct option that describes a caption is: a line of text explaining an illustration. The caption is typically a short piece of text that accompanies an image, photo, or illustration, providing additional information or context about the visual content. It helps the viewer understand the image better or provides extra information that the image alone may not convey. To determine the correct option, you could read the provided choices and consider which one accurately describes the purpose and function of a caption.
A caption is a line of text explaining an illustration.
