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': 'Anaemia, punctate basophilia, constipation, blue line and abdominal colic are characreristic of - \nSelect and explain. \nA. Opium addiction, B. Arsenic poisoning, C. Mercuric poisoning, D. Lead poisoning', 'role': 'user'}, {'content': 'Answer: D \nExplanation: \u200bAnemia, punctuate basophilia, constipation, blue line on gums and abdominal colic suggest the diagnosis of chronic lead poisoning.', 'role': 'assistant'}]