Final answer:
The correct answer is b) Declassified.
Step-by-step explanation:
The correct answer is b) Declassified. When information, in the interest of national security, no longer requires protection at any level, it is declassified. Declassification means that the information is made public and accessible, allowing for transparency and accountability.
For example, when government documents or intelligence reports are declassified, they can be accessed by researchers, journalists, and the general public.
Declassification is an important process that balances the need for national security with the principles of democracy and openness.