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': "Line joining greater trochantes and anterior superior iliac spine is \nSelect and explain. \nA. Schoemaker's line, B. Perkin's line, C. Nelton's line, D. Chiene's line", 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]