This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Toxicology - 3, Subject name: Forensic Medicine
[{'content': 'The active principle of this poison is \nSelect and explain. \nA. Strychnine, B. Conine, C. Aconitine, D. Cannabinol', 'role': 'user'}, {'content': 'Answer: A \nExplanation: This is a image of nuxvomica Fatal does is one crushed seed. It has three active principle = strychnine, brucine and loganine.', 'role': 'assistant'}]