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': "'Sui needle used to kill animals are made of: PGI 06 \nSelect and explain. \nA. Dhatura seeds, B. Rati seeds, C. Lead peroxide, D. Arsenic", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. Rati seeds', 'role': 'assistant'}]