Which of the following statements about headers and footers is true?

Headers and footers are special areas in a document typically used to display information such as page numbers, document titles, or author names. The statement that they can contain graphics and text is accurate because, in word processing applications, headers and footers are versatile sections where you can insert not only plain text but also images, shapes, and other graphical elements. This functionality allows for a more visually appealing and informative presentation of the document, which enriches the overall design and aids in branding or thematic coherence.

Meanwhile, the other statements are limiting. The idea that headers and footers can only contain text excludes their graphical capabilities, and the claim that they cannot be edited contradicts their design purpose, as users can freely modify the content as needed. Thus, the ability to incorporate both graphics and text accurately reflects the true functionality of headers and footers in word processing documents.