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
Phossy jaw is seen in: 
Select and explain. 
A. Poisoning of copper, B. Poisoning of phosphorus, C. Poisoning of lead, D. Poisoning of arsenic
B: Poisoning of phosphorus
Answer: B: Poisoning of phosphorus 
Explanation: Poisoning of phosphorus