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
[{'content': 'Commonest complication of extra capsular interochanteric fracture of neck of femur is: \nSelect and explain. \nA. Non union, B. Ischemic necrosis, C. Malunion, D. Pulmonary complications', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Malunion', 'role': 'assistant'}]