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': "Mc. Murray's sign is seen in injury to \nSelect and explain. \nA. Medial meniscus, B. Medial collateral ligament, C. Anterior cruciate ligament, D. Posterior cruciate ligament", 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Medial meniscus', 'role': 'assistant'}]