Which of the following areas does not belong to the category of traditional national security ().

A, space B, deep sea C, cyberspace D, polar

In the traditional national security, such as political security, homeland security, military security, economic security, social security, scientific and technological security on the basis of the new space, deep sea and polar security, virtual space network and information security, cultural security . The spatial and temporal domain "wide" performance in the original space on the basis of new space, deep sea and polar security, network and information security, cultural security.

National security is related to the survival of the country and the nation. Without national security, the security of individual citizens cannot be guaranteed.