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: \nSelect and explain. \nA. Poisoning of copper, B. Poisoning of phosphorus, C. Poisoning of lead, D. Poisoning of arsenic', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Poisoning of phosphorus', 'role': 'assistant'}]