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
True about lupus vulgaris – a) Apple jelly nodule at root of noseb) TB of skin & mucosac) Also known as scrofulodermad) ATT is helpful 
Select and explain. 
A. abd, B. bcd, C. abc, D. ab
A: abd
Answer: A: abd 
Explanation: Lupus vulgaris is the most common form of cutaneous (skin and mucosa) tuberculosis.
Blanching with glass slide reveals grey green foci → Apple jelly nodules.
Treatment is anti-tubercular drugs.