This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Larynx, Subject name: ENT
The muscle responsible for falsetto voice of puber phonia is 
Select and explain. 
A. Vocalis, B. Thyroarytenoid, C. Posterior cricoarytenoid, D. Cricothyroid
D: Cricothyroid
Answer: D: Cricothyroid 
Explanation: Cricothyroid is the main tensor responsible for the falsetto voice in puberphonia. There is hyperkinetic function and spasm of cricothyroid muscle. Ref:- TB of ENT Hazarika; pg num:- 636