This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Dental
True about pemphigus vulgaris A/E: 
Select and explain. 
A. Subepidermal, B. Autoimmune disease, C. Tzanck smear shows acanthoyltic cells, D. Antibody are formed against desmogleins
A: Subepidermal
Answer: A: Subepidermal 
Explanation: i.e. Subepidermal Ref : Thomas b Habif 6th Ed.