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': "Kinebock's disease is due to avascular necrosis of- \nSelect and explain. \nA. Femoral neck, B. Medial cuneiform bone, C. Lunate bone, D. Scaphoid bone", 'role': 'user'}, {'content': "Answer: C \nExplanation: Kienbock's disease is osteochondritis of Lunate.", 'role': 'assistant'}]