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': 'All of the following are seen in psoriasis except: \nSelect and explain. \nA. Auspitz sign present, B. 10% associated with ahritis, C. It is premalignant disease, D. Worsening of disease during winter', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C. i.e. Its premalignant disease', 'role': 'assistant'}]