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': 'Dryness of mouth, dilated pupil & delirium are symptoms of - \nSelect and explain. \nA. Chronic lead poisoning, B. Opium addiction, C. Chronic arsenic poisoning, D. Dhatura poisoning', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]