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
Primary healing of a mandibular fracture is seen following fixation with: 
Select and explain. 
A. Gunning splints, B. Compression plates, C. Trans-osseous wires, D. Clampy plates
B: Compression plates
Answer: B: Compression plates 
Explanation: None