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': 'More than _____ of body surface is involved in Erythrodermic psoriasis \nSelect and explain. \nA. 80%, B. 85%, C. 90%, D. 95%', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Erythrodermic psoriasis is characterised by fusion of margins and >90% of body gets involved', 'role': 'assistant'}]