What is the correct format for a portion marking indicating Confidential Special Access Program information?

The correct format for indicating Confidential Special Access Program (SAP) information is structured to convey clarity and compliance with established guidelines. The appropriate marking includes the classification level followed by the specific designation for the special access program and an indication of the reason for the special access.

In this context, the correct format incorporates the classification level "C" for "Confidential," with a designation for the Special Access Program. It also requires additional context, such as an identifier for the reason SAP is in effect, which is typically represented in a bracketed format to delineate this information clearly.

The correct answer thus aligns with established marking protocols for classified information, ensuring that users can readily identify the classification level and special access requirements. Proper marking is essential for safeguarding sensitive information and maintaining compliance with classification standards.