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': 'Dilated pupil, dry mouth is a feature of poisoning due to \nSelect and explain. \nA. Morphine, B. Organophosphorus, C. Dhatura, D. Phenothiazines', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]