This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Human identification, Subject name: Forensic Medicine
[{'content': "Locord's system is: \nSelect and explain. \nA. Podography, B. Dactylography, C. Poroscopy, D. Cheiloscopy", 'role': 'user'}, {'content': 'Answer: C \nExplanation: PoroscopyQ Microscopic study of poresQ formed by mouths of ducts of sub epidermal sweat glandsQ. The arrangement of pores are unique to each individual. Described by LocardQ. Dactylography - Study of finger prints Cheiloscopy - Study of lip prints Podography - Study of foot prints', 'role': 'assistant'}]