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: ENT
[{'content': 'Not a cardinal sign of chronic tonsillitis \nSelect and explain. \nA. Irwin Moore sign, B. Flushing of Anterior pillars, C. Upper deep cervical lymph nodes enlarged, D. Dull Tympanic membrane', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]