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 nerve involvement in fracture surgical neck humerus: 
Select and explain. 
A. Axillary nerve, B. Radial nerve, C. Ulnar nerve, D. Median nerve
A: Axillary nerve
Answer: A: Axillary nerve 
Explanation: A i.e. Axillary nerve Injury Common Nerve Involvement Anterior shoulder dislocation Fracture surgical neck humerus Axillary (circumflex humeral) nerveQ Axillary nerveQ Fracture shaft humerus Fracture supracondylar humerus Medial condyle humerus Radial nerveQ Radial or median nerve Ulnar nerve Monteggia fracture dislocation Posterior interosseous nerve Vockman's ischemic contracture Lunate dislocation Median nerve Median nerveQ Hip dislocation Sciatic nerve Knee dislocation Peroneal nerve