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': 'Bilateral recurrent laryngeal nerve palsy is seen in - \nSelect and explain. \nA. Thyroidectomy, B. Carcinoma thyroid, C. Cancer cervical oesophagus, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Causes of bilateral recurrent laryngeal nerve palsy are: \n\nIdiopathic\nPost thyroid surgery\nThyroid malignancy\nCarcinoma of cervical part of esophagus\nCervical Lymphadenopathy.\n\nNOTE:\nPeripheral neuritis causes high vagal palsy which leads to both superior as well as recurrent laryngeal nerve palsy i.e. bilateral complete palsy.', 'role': 'assistant'}]