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 one of the following is a monosaccharide \nSelect and explain. \nA. Maltose, B. Sucrose, C. Fructose, D. Starch', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]