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
All are true regarding tear film except: 
Select and explain. 
A. Consists of aqueous, lipid & mucus layer, B. Lipid layer is secreted by meibomian glands, C. Aqueous layer is formed by filtration from blood capillaries, D. Deficiency cause dry eye
C: Aqueous layer is formed by filtration from blood capillaries
Answer: C: Aqueous layer is formed by filtration from blood capillaries 
Explanation: C i.e. Aqueous layer is formed by filtration from blood capillaries