This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Facial Nerve And Its Disorders, Subject name: ENT
Most appropriate treatment of facial nerve injury in lateral facial wound is: 
Select and explain. 
A. Secondary repair, B. Primary repair, C. Secondary repair with grafting, D. Healing with secondary intention
B: Primary repair
Answer: B: Primary repair 
Explanation: (b) Primary repair(Ref. Scott Brown, 6th ed., 1403)Any sudden onset palsy following injury (iatrogenic or non iatrogenic trauma), should be managed by immediate exploration and repair.