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
Refractive power of eye depends upon mainly following factor/factors –a) Lensb) Corneac) Vitreous haemorrhage d) Aqueous Humoure) Axial length of the eye 
Select and explain. 
A. abc, B. bcd, C. abe, D. acd
C: abe
Answer: C: abe 
Explanation: Factors that determine the refractive power of the eye 

Power of the cornea (determined by refractive index & radius of curvature)
The depth of the anterior chamber (the distance of the lens from the cornea)
The diopter power of the lens
The length of the eye