This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Forensic Toxicology - Concepts, Statutes, Evidence, and Techniques, Subject name: Forensic Medicine
[{'content': 'Delirium is caused by which poison? \nSelect and explain. \nA. Aconite, B. Dhatura, C. Morphine, D. Kerosene', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) DhaturaRef.: Parikh 6th ed. 11.30', 'role': 'assistant'}]