Markings identify what aspect of classified information?

Markings on classified information serve a crucial role by indicating both the classification level and the purpose of the information. Specifically, the classification level (such as Confidential, Secret, or Top Secret) communicates the degree of sensitivity and the potential impact that unauthorized disclosure could have on national security. Additionally, the purpose of the classification often informs users about the context or the specific reason why the information has been deemed sensitive.

This dual-function of markings enhances operational security by ensuring that all individuals handling the information understand both how sensitive the content is and the importance of protecting it appropriately. While other options suggest partial aspects of what markings convey, only the correct choice encompasses both critical functions of classification marking, making it essential for the proper handling of sensitive materials.