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': 'Change in pitch of sound is produced by which muscle? \nSelect and explain. \nA. Post cricoarytenoids, B. Lateral cricoarytenoids, C. Cricothyroid, D. Vocalis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The muscle responsible for charge in pitch of voice is cricothyroid', 'role': 'assistant'}]