This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fracture of Tibia and Fibula, Subject name: Orthopaedics
[{'content': 'Runners fracture occurs in which bone? \nSelect and explain. \nA. Fibula, B. Femur, C. Tibia, D. All of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) FibulaRef: Rockwood 7th ed. ch.: 19', 'role': 'assistant'}]