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: Surgery
[{'content': 'Brittle bone disease is ? \nSelect and explain. \nA. Osteogenesis imperfecta, B. Osteopetrosis, C. Pagets disease, D. Osteoporosis', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. A:Osteogenesis imperfecta Osteopetrosis is also known as Marble bone disease or Albers-Schonberg disease. Paget's disease is known as Osteitis deformans. Osteogenesis imperfecta is known as Brittle bone disease. Osteoporosis is known as Fragile bone disease.", 'role': 'assistant'}]