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: Ophthalmology
Mucopolysaccharide hyaluronic acid is present in – 
Select and explain. 
A. Vitreous humor, B. Cornea, C. Blood vessels, D. Lens
A: Vitreous humor
Answer: A: Vitreous humor 
Explanation: None