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': 'Which of the following are epimers \nSelect and explain. \nA. Glucose and Mannose, B. Galactose and mannose, C. Glucose and fructose, D. Fructose and Glucose', 'role': 'user'}, {'content': 'Answer: A \nExplanation: → 2nd epimer of glucose is mannose\n→ 4th epimer of glucose is Galactose.', 'role': 'assistant'}]