Besides the level of classification, what other information can appear in portion and banner markings?

The correct answer highlights that control and dissemination markings are essential components that can appear in portion and banner markings alongside the classification level of a document. Control markings indicate how the information should be handled, stored, and disseminated, providing guidance on access and distribution even within classified contexts.

For example, a document may have markings that specify whether it can be shared with foreign allies or if it contains sensitive information that requires additional clearance for access. This is crucial for compliance with security protocols and protecting national security interests.

In contrast, the other options offer only partial or unrelated information that does not fulfill the standard for what can appear in these crucial markings. Document creation date, the author's name and title, and the security classification level may be relevant to a document's metadata, but they do not encompass the necessary control and dissemination information required for effective management of classified documents. This reinforces the importance of knowing the broader scope of information relevant to secure handling practices.