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': 'Keratoderma is/are seen in \nSelect and explain. \nA. Pemphigus, B. Pityriasis rosea, C. Pityriasis rubra pilaris, D. Dermatitis herpetiformis', 'role': 'user'}, {'content': "Answer: C \nExplanation: C i.e. Pityriasis rubra pilaris Keratoderma is seen in PRP, psoriasis, Reiter's syndrome (keratoderma blenorrhagica), arsenic and Haxthausen's disease.", 'role': 'assistant'}]