This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Elbow injuries, Subject name: Orthopaedics
The malunion of Supracondylar fracture of the humerus most commonly involved in ? 
Select and explain. 
A. Flexion defornity, B. Cubitus varus, C. Cubitus valgus, D. Extension deformity
B: Cubitus varus
Answer: B: Cubitus varus 
Explanation: Cubitus varus also known as gun stock deformity It is the most common complication of Supracondylar fracture of humerus Refer Maheshwari 9th /e p 102