Which of the following classification levels defines the information that, if disclosed to the unauthorized parties, could be reasonably expected to cause exceptionally grave damage to the national security?

A.
Top Secret information

B.
Secret information

C.
Confidential information

D.
Unclassified information

Explanation:

Top Secret information is the highest level of classification of material on a national level. Such material would cause “exceptionally grave damage” to national security if publicly available. Answer option B is incorrect. Secret information is that, if disclosed to unauthorized parties, could be expected to cause serious damage to the national security, but it is not the best answer for the above Answer option C is incorrect. Such material would cause “damage” or be “prejudicial” to national security if publicly available.
Answer option D is incorrect. Unclassified information, technically, is not a classification level, but is used for government documents that do not have a classification listed above. Such documents can sometimes be viewed by those without security clearance.