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': 'False about larynx ? \nSelect and explain. \nA. 9 cailages - 3 paired and 3 unpaired., B. Extends from C3 to C6 veebrae., C. External laryngeal nerve supplies all laryngeal muscles except cricothyroid., D. Cricothyroid is a tensor of vocal cord.', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Larynx is made up of 9 cailages : 3 paired & 3 unpaired. It extends from C3 - C6 veebral level. All laryngeal muscles are supplied by recurrent laryngeal nerve except cricothyroid (supplied by external laryngeal nerve). Cricothyroid tenses the vocal cord .', 'role': 'assistant'}]