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: Orthopaedics
[{'content': 'Aviator fracture is - \nSelect and explain. \nA. Fracture neck of talus, B. Fracture scaphoid, C. Fracture calcaneum, D. Fracture 5 metatarsal', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]