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': 'The active principles of Dhatura are all of the following except : \nSelect and explain. \nA. Pyricatachol, B. Hyoscyamine, C. Atropine, D. Hyoscine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Pyricatachol', 'role': 'assistant'}]