What type of data must be handled and stored properly based on classification markings and handling caveats?

The answer is classified data or information.

Classified data or information is designated by the original classification authority as; confidential, secret, and Top secret. Top secret, for instance, is info that could be expected to cause grave damage to the national security if exposed. Such data must be handled and stored properly based on classification markings and handling caveats. Individuals with appropriate clearance, signed and approved NDA are the only individuals who can access the classified data

answer; thats a symptom of hallucinogens,drug abuse;