This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Classification of carbohydrate, Subject name: Biochemistry
[{'content': 'Excess of which of following can result in cataract \nSelect and explain. \nA. Sugar alcohol, B. Glucose, C. Sugar amines, D. Galactose', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Sugar Alcohols and cataract: = Reduction of monosaccharides forms sugar alcohols = sugar alcohols are hygroscopic in nature, absorb water, and will cause cell swelling = They especially get accumulated in the lens of the eye causing cataract. Examples: Glucose forms sorbitol in diabetes and leads to snowflake cataract In galactosemia, Excess Galactose is reduced to galactitol and give rise to oil drop cataract', 'role': 'assistant'}]