Which statement is accurate about the concept of 'revealed by' in classification?

• A. It denotes information that has been publicized.
• B. It refers to the information being summarized.
• C. It indicates how new documents derive their information.
• D. It applies only to declassified information.

Answer: (C)

The concept of 'revealed by' in classification is accurately described by how new documents derive their information. This phrase is used to indicate that the information in a new document is based on or derived from existing classified information. It emphasizes that if a document incorporates or restates information that is already classified, it must adhere to the same classification guidelines and restrictions. This is important in derivative classification to ensure that sensitive information is properly handled and protected, regardless of the source.

Options discussing publicized information or summarization do not capture the essence of how classified information is generated from previous documents. Similarly, the notion that it only pertains to declassified information does not align with the fundamental principles of classification, as the focus is on maintaining the security of classified data, whether it remains classified or is revealed.