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': 'Not a contact poison: MAHE 14 \nSelect and explain. \nA. Pyrethrum, B. Paris green, C. Rotenone, D. Eucalyptus oil', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. Paris green', 'role': 'assistant'}]