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': 'Active principle of oleander plant is: NEET 14; AIIMS 14 \nSelect and explain. \nA. Cannabinol, B. Atropine, C. Semicarpol, D. Nerin', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. Nerin', 'role': 'assistant'}]