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': 'What would be the most reliable test for an acutely injured knee of a 27 year old athlete \nSelect and explain. \nA. Anterior drawer test, B. Posterior drawer test, C. Lachman test, D. Steinmann test', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Lachman test', 'role': 'assistant'}]