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: Anatomy
[{'content': 'Angle of the neck of femur to shaft is - \nSelect and explain. \nA. 110°, B. 125°, C. 170°, D. 100°', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]