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': '80 years old female after fall developed inability to walk with external rotation deformity on examination SLR is not possible and broadening of trochenter is present. The possible diagnosis is: \nSelect and explain. \nA. Neck femur, B. Inter trochanteric femur, C. Subtrochanteric femur, D. Greater trochanter', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Inter trochanteric femur', 'role': 'assistant'}]