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
Most common pathognomonic sign of mandibular fracture: 
Select and explain. 
A. Sublingual hematoma., B. Malocclusion, C. Tenderness, D. Buccal hematoma.
A: Sublingual hematoma.
Answer: A: Sublingual hematoma. 
Explanation: Sublingual hematoma is the best pathognomonic sign.