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
Tuberculosis of skin is called as – a) Lupus vulgarisb) Lupus pernioc) Lupus profundusd) Scrofuloderma 
Select and explain. 
A. b, B. c, C. ad, D. ab
C: ad
Answer: C: ad 
Explanation: Lupus vulgaris is the most common type of cutaneous tuberculosis.
Scrofuloderma is 2nd most common type of cutaneous tuberculosis.