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': 'Auspitz sign is seen in: \nSelect and explain. \nA. Pustular psoriasis, B. Plaque type psoriasis, C. Lichenn planus, D. Pityriasis rubra pilaris', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Plaque type psoriasis', 'role': 'assistant'}]