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
[{'content': 'The molecule, which is the initiator of cataract formation in the eye lens and whose 1-phosphate derivative is responsible for the liver failure, is \nSelect and explain. \nA. Sorbitol, B. Mannitol, C. Inositol, D. Galactitol', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Galactitol\n\nGalactitol and sorbitol both can cause cataract.\nBut there is one more information in the question, i.e. 1-phosphate of that metabolic is responsible for the liver failure. Galactose-1-phosphate cause liver failure in galactosemia.\nSo, the examiner is asking about cataract in galactose', 'role': 'assistant'}]