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
Least common complication of closed supracondylar fracture in a 8 year old child is: 
Select and explain. 
A. Cubitus valgus, B. Cubitus varus, C. Nonunion, D. Vessel injury
C: Nonunion
Answer: C: Nonunion 
Explanation: C i.e. Nonunion