This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pharynx, larynx and trachea and cranial nerves 3,4,6, Subject name: Anatomy
[{'content': 'Nerve liable to get injured on removing the fish bone from pyriform fossa:- \nSelect and explain. \nA. Superior laryngeal nerve, B. Internal laryngeal nerve, C. External laryngeal nerve, D. Recurrent laryngeal nerve', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Pyriform fossa is located on the side of epiglottis. It is supplied by Internal laryngeal nerve. Hence this nerve is liable to get injured while removing a fish bone from pyriform fossa. .', 'role': 'assistant'}]