Answer :
The Special Security Officer (SSO) coordinates to list the SCIF in the installation directive and posts the information outside the SCIF as part of their duty to maintain security over sensitive areas. Therefore option a. The SSO (Special Security Officer)
The responsibility of coordinating to list the Sensitive Compartmented Information Facility (SCIF) within the post or installation directive, and to post outside the SCIF, lies with the Special Security Officer (SSO). The SSO's role includes oversight and enforcement of policies related to the handling and protection of sensitive and classified information. It's through their directive that restricted areas, such as SCIFs, are clearly identified and properly secured. This task is crucial for maintaining the integrity and security of government or military operations that handle sensitive information.