This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Forensic Medicine
[{'content': "Galton's system is used for: \nSelect and explain. \nA. Dactylography, B. Poroscopy, C. Ridgeology, D. Anthropometry", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. Dactylography', 'role': 'assistant'}]