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
Phassy jaw is caused by 
Select and explain. 
A. Yellow phosphorus, B. White phosphorus, C. Cadmium, D. Lead
B: White phosphorus
Answer: B: White phosphorus 
Explanation: Phossy Jaw is produced by chronic white phosphorus poisoning.