Concept:Safety measures protect people and equipment from harm in an ICT environment.Explanation:Option A: Not overloading a socket prevents fires and electrical hazards.Option B: Sitting in a correct posture prevents body strain and injury.Option D: Avoiding damaged sockets prevents electric shock.Option C: Allowing a laptop battery to run down before charging is a battery maintenance practice, not a safety measure.Therefore, the option that is not a safety measure is C.Answer:C. Allowing the battery of a laptop to run down before charging.