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: Biochemistry
The molecule, which is the intiator of cataract formation in the eye lens and whose 1- phosphate derivative is responsible for liver failure, is: 
Select and explain. 
A. Sorbitol, B. Mannitol, C. Inositol, D. Galacticol
D: Galacticol
Answer: D: Galacticol 
Explanation: D i.e. Galactitol