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
Most common pa of larynx involved in TB ? 
Select and explain. 
A. Anterior, B. Posterior, C. Middle, D. Anywhere
B: Posterior
Answer: B: Posterior 
Explanation: Ans. is 'b' i.e., Posterior Essential otolaryngology 2"d/e p. 1139] Disease affects the posterior third of larynx more commonly than anterior pa. The pas affected in descending order of frequency are :- i) Interarytenoid fold, ii) Ventricular band, iii) Vocal cords, iv) Epiglottis.