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
[{'content': "Max. Joseph's space is a histopatho-logical feature of – \nSelect and explain. \nA. Psoriasis vulgaris, B. Lichen planus, C. Pityriasis rosea, D. Parapsoriasis", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Max Joseph histological clefts are produced as a result of separation of epidermis in small clefts. These clefts are seen in Lichen planus.', 'role': 'assistant'}]