This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Blistering disorders, Subject name: Dental
[{'content': 'Antibody against BP 230 and BP 180 seen in \nSelect and explain. \nA. Pemphigus vulgaris, B. Bullous pemphigoid, C. Dermatitis herpetiformis, D. Hailey-Hailey Disease', 'role': 'user'}, {'content': 'Answer: B \nExplanation: BP 230 / BPAg1 and BP 180/BPAg2 are antigens in the DEJ involved in Bullous Pemphigoid.', 'role': 'assistant'}]