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
Kinebock's disease is due to avascular necrosis of- 
Select and explain. 
A. Femoral neck, B. Medial cuneiform bone, C. Lunate bone, D. Scaphoid bone
C: Lunate bone
Answer: C: Lunate bone 
Explanation: Kienbock's disease is osteochondritis of Lunate.