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
Compression osteogenesis uses: 
Select and explain. 
A. Distraction osteogenesis, B. Non/fibrous union, C. Hemi mandibulectomy hyperplasia treatment, D. Bone graft
B: Non/fibrous union
Answer: B: Non/fibrous union 
Explanation: None