Final answer:
Destruction of classified information refers to the 'Disposal' of sensitive data, ensuring it cannot be reconstructed. Deletion, Archiving, and Encryption are not equivalent to destruction.
Step-by-step explanation:
The destruction of classified information refers to the process of destroying sensitive data so that it is beyond recognition and cannot be reconstructed. Among the options provided, b) Disposal is the correct answer. Disposal of classified information involves methods such as shredding, burning, pulping, or pulverizing the physical media, and may also include wiping or degaussing electronic media to permanently remove the data stored on them.
Deletion would not be sufficient for destruction, as deleted files can often be reconstructed. Archiving is the storage of data for long-term retention, which is the opposite of destruction. Meanwhile, Encryption is the act of encoding data to secure it from unauthorized access but does not destroy the data itself.