This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Psoriasis, Subject name: Skin
[{'content': 'Auspitz sign is seen in - \nSelect and explain. \nA. Plaque psoriasis, B. Lichen planus, C. Pustular psoriasis, D. Icthyosis', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Plaque psoriasis Auspitz signo It is a bed side test used for the diagnosis of psoriasis vulgaris/ plaque psoriasis. In this, removal of scales leads to pin point bleeding (punctate red dots) in psoriatic lesion.", 'role': 'assistant'}]