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: Orthopaedics
[{'content': 'Treatment of choice in fracture neck of femur in a 40-year-old male presenting after 2 days is - \nSelect and explain. \nA. Hemiarthroplasty, B. Closed reduction and Internal fixation by cancellous screws, C. Closed reduction and Internal fixation by Austin Moore pins, D. Plaster and rest', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]