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': "Which of the following conditions is diagnosed using Cozen's test? \nSelect and explain. \nA. Little leaguer's elbow, B. Tennis elbow, C. Golfer's elbow, D. Frozen shoulder", 'role': 'user'}, {'content': "Answer: B \nExplanation: Cozen's test - In this test active extension of wrist against resistance produces pain at the point of common extensor origin. It is considered a positive finding for lateral epicondylitis or Tennis elbow.", 'role': 'assistant'}]