Which of the following is a classification of military information?

Classifying military information is essential for national security and protecting sensitive data from unauthorized access. The classification "Confidential" is specifically used within the military and government sectors to denote information that, if disclosed without authorization, could cause damage to national security. It falls between "Unclassified" and "Secret" in the classification hierarchy, ensuring that only individuals with appropriate clearance levels can access such information.

In contrast, the other classifications provided do not fit within the specific military classification system. "Public" refers to information that is openly available and not restricted in any way. "Proprietary" typically pertains to private ownership, related to business interests rather than military or government classification. "Private" generally refers to personal information that individuals choose not to disclose, which does not align with the standards of military classification. Thus, "Confidential" is the correct classification as it directly pertains to military information and its handling.