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: Dental
"Apple jelly nodules on diascopy are seen in" 
Select and explain. 
A. Lichen schafuloceum, B. Lupus vulgaris, C. Psoriasis vulgorir, D. Scrofuloderma
B: Lupus vulgaris
Answer: B: Lupus vulgaris 
Explanation: It is the most form of cutaneous TB characterized by chronic,progressive,itch,annulor skin lesions with cetrol scarring,dioscopy(pressing with glass slide) reveals "Apple jelly nodules"