This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fungal infections, Subject name: Dental
[{'content': "Wood's lamp is made up of - \nSelect and explain. \nA. 9% nickel oxide with 6% barium silicate, B. 9% nickel oxide with 9% barium silicate, C. 6% nickel oxide with 6% barium silicate, D. 9% nickel oxide with barium silicate", 'role': 'user'}, {'content': "Answer: D \nExplanation: Wood's Lamp It is a low intensity ultraviolet light(360nm) emitted by a high pressure mercury lamp fitted with a special filter made up of 9% nickel oxide and silica.", 'role': 'assistant'}]