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
On loading the fracture mandible posterior to the site of fracture, which of the following is present: 
Select and explain. 
A. Tension on upper border, B. Compression on upper border, C. Compression on medial surface, D. Compression on inferior surface
B: Compression on upper border
Answer: B: Compression on upper border 
Explanation: None