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: Medicine
[{'content': "Tinel's test is: \nSelect and explain. \nA. Loss of sensation., B. Loss of 2 point discrimination., C. Percussion produces tingling sensation., D. Not associated with carpel tunnel syndrome.", 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]