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
Which one of the following is a monosaccharide 
Select and explain. 
A. Maltose, B. Sucrose, C. Fructose, D. Starch
C: Fructose
Answer: C: Fructose 
Explanation: None