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': "Tinel's sign used in \nSelect and explain. \nA. To asses spinal shock, B. To asses the severity of damage of nerve, C. To asses regeneration of nerve, D. To classify the type of nerve injury", 'role': 'user'}, {'content': "Answer: C \nExplanation: Tinel's sign is elicited by tapping on the nerve among its course from distal to proximal direction, tingling sensation is felt at the sprouting nerve ends.", 'role': 'assistant'}]