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: Surgery
Pathologic fracture can occur in all except: 
Select and explain. 
A. Metabolic bone disease, B. Osteosarcoma, C. Osteochondroma, D. All
C: Osteochondroma
Answer: C: Osteochondroma 
Explanation: C i.e. Osteochondroma