The concept of "Contained in" applies to all EXCEPT which circumstance?

The concept of "Contained in" relates to how information is classified based on its source and the context in which it is presented. In this framework, certain situations indicate whether information can be deemed classified based on its origin or the presence of specific supporting safeguards.

The correct answer, pertaining to the idea that "Contained in" does not apply when the information must be deduced as classified through analysis, highlights an important distinction. When establishing classification, it is imperative that the source or the context of the information explicitly references classification. If classification relies solely on inference or deduction, it does not meet the criteria for being "contained in" a classification system. This means that a conclusion drawn from analysis, rather than direct reference to classified materials or explicit guidelines, does not fall under the definition of information that is "contained in" a classified source.

In contrast, the other circumstances involve information that is more straightforwardly classified due to explicit indications of classification, such as through security classification guides or explicit documentation. Casual conversations about details may inadvertently convey classified information, and aggregated data in documentation can be explicitly marked as classified based on contained information rather than inferred conclusions.