This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Anatomy
Sensory supply of larynx, below the vocal cord 
Select and explain. 
A. Superior laryngeal nerve, B. Inferior laryngeal nerve, C. Recurrent laryngeal nerve, D. Internal laryngeal nerve
C: Recurrent laryngeal nerve
Answer: C: Recurrent laryngeal nerve 
Explanation: Sensory supply: The internal laryngeal nerve supplies the mucous membrane upto the level of the vocal folds. The recurrent laryngeal nerve supplies it below the level of the vocal folds. Ref: BD Chaurasia's HUMAN ANATOMY, Volume 3, 4th edition.