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
What is Kienboch's disease - 
Select and explain. 
A. Osteochondritis of lunate, B. Osteochondritis of neck of femur, C. Osteochondritis of navicular, D. Osteochondritis of tibial condyle
A: Osteochondritis of lunate
Answer: A: Osteochondritis of lunate 
Explanation: None