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
Why vocal cord looks pale? 
Select and explain. 
A. Vocal cord is muscle, lack of blood vessels network, B. Absence of mucosa, no blood vessels, C. Absence of sub mucosa, no blood vessels, D. Absence of mucosa with blood vessels
C: Absence of sub mucosa, no blood vessels
Answer: C: Absence of sub mucosa, no blood vessels 
Explanation: Vocal cord are fibro elastic bands. They are formed by reflection of the mucosa over vocal ligaments. They have stratified squamous epithelium with no submucous layer Their blood supply is poor and are almost devoid of lymphatics. Hence vocal cords look pale in appearance.