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': '"Keratotic sandal" is  seen in which of the following? \nSelect and explain. \nA. Reiter\'s disease, B. Pityriasis rubra pilaris, C. Tinea versicolor, D. Sezary syndrome', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Pityriasis rubra pilaris present with red hyperkeratotoc follicular papules and thickening of palms & soles.\nOften the thickening on sole is so thick that it appears like a sandal - termed as "Keratotic sandal"', 'role': 'assistant'}]