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: Anatomy
Most common site for avascular necrosis of femur is: 
Select and explain. 
A. Subcapital, B. Transcervical, C. Trochanteric, D. Basal
A: Subcapital
Answer: A: Subcapital 
Explanation: A i.e. Subcapital fracture Avascular necorsis & Non union are most common in subcapital type of fracture neck femur Q & least common in basal neck femur Q.