Answer :
Final answer:
If a Sensitive Compartmented Information Facility (SCIF) is no longer required, the local Special Security Officer (SSO) must initiate the withdrawal of accreditation and forward the request to the Director of National Intelligence (DNI). Hence the correct option would be option b.
Explanation:
When a Sensitive Compartmented Information Facility (SCIF) is no longer required, the local Special Security Officer (SSO) will initiate withdrawal of accreditation and forward a copy of the request to the Director of National Intelligence (DNI). This process is part of the broader measures taken to ensure the security of classified information, which is a vital component of national security. While the SCIF's day-to-day operations will involve the Facility Security Officer, the withdrawal of a SCIF's accreditation is a matter that requires the attention of higher authorities, such as the DNI, signifying the importance and sensitivity of the action.