Sensory supply of vocal cord is
"Above the vocal cords, the sensory innervations of the larynx is internal laryngeal nerve (a branch of superior laryngeal nerve). Below vocal cords, it is by the branches of recurrent laryngeal nerve. The vocal cord itself receives dual innervations from both nerves". Ref: PL Dhingra, Diseases of Ear, Nose & Throat, 7th edition, pg no. 322
Internal laryngeal nerve
Recurrent laryngeal nerve
Superior laryngeal nerve
All of the above
Larynx