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': "'Phossy jaw' is seen in chronic poisoning with: AFMC 11; NEET 13 \nSelect and explain. \nA. Datura, B. Phosphorus, C. Arsenic, D. Thallium", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. Phosphorus', 'role': 'assistant'}]