Which marking is correctly formatted for a document containing Secret SAP information?

The correct answer is the formatting of "SECRET//WW" which appropriately indicates that the document contains Secret Special Access Program (SAP) information.

In the context of classified information, the marking system is designed to clearly communicate the level of classification and any applicable special categories. The marking begins with the classification level, which in this case is "SECRET." This means that the information is subject to a certain level of protection due to its potential impact on national security if disclosed.

The "//" denotes the separation from any additional markings that may imply further restrictions or categorizations. "WW" signifies a special compartmented program, which can be used to indicate that the information is part of a program handled with extra caution beyond the standard Secret classification.

When marking documents, it's crucial to use the correct standard format. In this instance, combining the classification level with the compartment designation "WW" effectively communicates the heightened sensitivity of the information contained within the document, ensuring it receives the appropriate handling and safeguarding procedures.