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: Anatomy
Cricothyroid muscle is: 
Select and explain. 
A. An abductor of vocal cords, B. An abductor of vocal cords, C. A tensor of vocal cords, D. It is supplied by recurrent laryngeal nerve
C: A tensor of vocal cords
Answer: C: A tensor of vocal cords 
Explanation: A tensor of vocal cords