Sensory supply of vocal cords is
Internal laryngeal nerve
Recurrent laryngeal nerve
Superior laryngeal nerve
All of the above
Above the vocal cords, the larynx is supplied by internal laryngeal nerve--a branch of superior laryngeal, and below the vocal cords by the recurrent laryngeal nerve. Ref: PL Dhingra Textbook of Ear, Nose and Throat, Edition 7, page - 337
Larynx