This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Forensic Toxicology - Concepts, Statutes, Evidence, and Techniques, Subject name: Forensic Medicine
[{'content': 'Phossy jaw is seen in which poisoning? \nSelect and explain. \nA. Mercury, B. Yellow phosphorous, C. Red phosphorous, D. Tetanus', 'role': 'user'}, {'content': 'Answer: B \nExplanation: ANSWER: (B) Yellow phosphorousREF: Textbook of Forensic Medicine and Toxicology by Nagesh Kumar Rao - Page 371Phossy jaw is a type of osteomyelitis of jaws observed in chronic cases of phosphorus poisoning. Incidence is common among the workers of phosphorus industries linked to "yellow phosphorous," the key ingredient in "strike-anywhere" matches, who are exposed to phosphorus fumes. The process starts in a carious tooth and then spreads, causing severe necrosis of the lower jawNote: Yellow phosphorous is also known as white phosphorous', 'role': 'assistant'}]