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
Abductor of vocal cords is ? 
Select and explain. 
A. Thyroarytenoid, B. Lateral cricoarytenoid, C. Posterior cricoarytenoid, D. Cricothyroid
C: Posterior cricoarytenoid
Answer: C: Posterior cricoarytenoid 
Explanation: Ans. is 'c' i.e., Posterior cricoarytenoid Abductors : Adductors : Tensors : Posterior cricoarytenoid Lateral cricoarytenoid Interarytenoid (transverse arytenoid) Thyroarytenoid (external pa) Cricothyroid Cricothyroid Vocalis (internal pa of thyroarytenoid)