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': 'The least significant finding in the palpation of neck nodes is \nSelect and explain. \nA. The size, B. The degree of firmness, C. Tenderness, D. Fixation to the underlying tissues', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]