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
65 year old man presented with fracture neck femur 3 days after injury , treatment of choice is : 
Select and explain. 
A. Multiple screw fixation, B. Mc-Murray osteotomy, C. Hemi-ahroplasty, D. Total hip replacement
C: Hemi-ahroplasty
Answer: C: Hemi-ahroplasty 
Explanation: C i.e. Hemi ahroplasty