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: Skin
[{'content': 'Pemphigus vulgaris is caused due to which type of hypersensitivity reaction? \nSelect and explain. \nA. I, B. II, C. III, D. IV', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., lllRef: IADVL textbook of dermatology 3'd/e p. 10991Pemphigus is a type 2 hypersensitivity reaction (antibody mediated), with formation of antibodies to pemphigus antigen present rn intercellular substance.", 'role': 'assistant'}]