This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Papulosquamous disorders, Subject name: Dental
[{'content': 'Keratodermic sandles is a feature of - \nSelect and explain. \nA. Pityriasis rosacea, B. Lichen planus, C. Psoriasis, D. Pityriasis rubra pilaris', 'role': 'user'}, {'content': 'Answer: D \nExplanation: pityriasis rubra pilaris- rare papulosquamous disease clinical features: erythematous macules , patches, follicular hyperkeratotic papules. yellow orange scales progress to erythroderma-islands of normal skin-"nappies claires" waxy diffuse yellowish keratoderma of palms and soles-"keratodermic sandals" treatment: topical :emollients,salicylic acid, urea, calcipotriol, steroids for limited disease systemic: retinoids, methotrexate, PUVA,NBUVB,azthioprine, cyclosporine, TNF alpha antagonists. fitzpatricks textbook of dermatology, page 532', 'role': 'assistant'}]