This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolic Disorders Leading to Osteosclerosis, Subject name: Orthopaedics
[{'content': 'Marble bone disease is better known as? \nSelect and explain. \nA. Osteoporosis, B. Osteochondritis, C. Osteopetrosis, D. Osteogenesis imperfecta', 'role': 'user'}, {'content': 'Answer: C \nExplanation: ANSWER: (C) OsteopetrosisREF: Bone diseases: macroscopic, histological, and radiological diagnosis By Claus-Peter Adler- Page 54Osteopetrosis, literally "stone bone", also known as marble bone disease and Albers-Schonbergdisease is an extremely rare inherited disorder whereby the bones harden, becoming denser due to increased calcified bone tissue, namely osteosclerosis.', 'role': 'assistant'}]