This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Injuries Around Arm & Elbow, Subject name: Orthopaedics
[{'content': 'Bumper fracture: \nSelect and explain. \nA. Fracture of fibula, B. Fracture of distal tibia, C. Fracture of medial tibial plateau, D. Fracture of lateral tibial plateau', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. (d) Fracture of lateral tibial plateauRef: BRS: gross anatomy 7th ed. / 83* Bumper fracture is a fracture of the lateral tibial plateau caused by a forced valgus applied to the knee usually by the impact bumper of a moving car on the lateral side of the knee while the foot is planted on the ground.* This causes the lateral part of the distal femur and the lateral tibial plateau to come into contact, compressing the tibial plateau and causing the tibia to fracture.', 'role': 'assistant'}]