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
Not a cardinal sign of chronic tonsillitis 
Select and explain. 
A. Irwin Moore sign, B. Flushing of Anterior pillars, C. Upper deep cervical lymph nodes enlarged, D. Dull Tympanic membrane
D: Dull Tympanic membrane
Answer: D: Dull Tympanic membrane 
Explanation: None