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: Pathology
[{'content': 'Intra-epithelial split is seen in : \nSelect and explain. \nA. Epidermolysis bullosa., B. Bullous pemphigoid., C. Pemphigus vulgaris., D. All of the above.', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]