This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Skeletal System, Subject name: Radiology
[{'content': "Antenatal detection of bone fractures on USG suggests? \nSelect and explain. \nA. Achondroplasia, B. Marfan's syndrome, C. Osteogenesis imperfecta, D. Chondrodysplasia punctata", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans CUltrasound findings of osteogenesis imperfecta include a marked shortening of the long bones, multiple bone fractures and lack of mineralization of the skull.', 'role': 'assistant'}]