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
[{'content': 'A 10-year-old boy developed hoarseness of voice following an attack of diphtheria. On examination, his Rt vocal cord was paralyzed. The treatment of choice for paralyzed vocal cord will be- \nSelect and explain. \nA. Gel foam injection of right vocal cord, B. Fat injection of right vocal cord, C. Thyroplasty-type-I, D. Wait for spontaneous recovery of vocal cord', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Unilateral paralysis of cord due to neuritis (as in diphtheria) does not require any treatment as it recovers spontaneously.\nThe characteristic features of diphtherial neuropathy are that it recovers completely.\nAnyways, in unilateral vocal cord paralysis generally, no treatment is required\n\n(Dhingra 5th/ep. 318).', 'role': 'assistant'}]