In the example given, how was the derivative classification for the new document determined?

The determination of derivative classification for a new document hinges on the principle of "contained in." When a new document incorporates information that is already classified and is drawn from another source, it is considered to be "contained in" the original classified information. This means that the new document retains the classification markings due to its reliance on existing data that has been classified.

In derivative classification, it is essential to respect the original classification decisions to prevent unauthorized dissemination of sensitive information. Therefore, if the new document's content includes elements that are already classified, it must inherit that classification status.

The other options suggest different relationships with classified information. "Derived from" refers to developing new information based on classified content but doesn't clarify if it's directly using existing classified data as its foundation. "Extrapolated from" implies a more speculative approach, which isn't aligned with the straightforward application of established classification. "Disclosed in" relates to revealing previously classified information, which is not the same concept as deriving classification from existing material.