Limit using the SSN of a military member unless authorized by which Executive Order?

The correct choice regarding limitations on using the Social Security Number (SSN) of a military member unless authorized is based on Executive Order 9397. This Executive Order establishes guidelines for the use of the SSN, particularly emphasizing the importance of protecting individuals' personal information. It mandates that federal agencies must limit the collection and use of SSNs to situations where it is necessary for the administration of programs and services.

By following the guidelines set forth in Executive Order 9397, organizations can protect sensitive information and reduce the risk of identity theft and data breaches. This Order plays a crucial role in ensuring that personal identifiers are handled responsibly, thus maintaining the confidentiality and integrity of military personnel's information.

The other options relate to various executive orders but do not specifically address the limitations or guidelines regarding the use of SSNs. Therefore, Executive Order 9397 stands out as the relevant authority in this context.