This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of carbohydrate, Subject name: Biochemistry
Non-reducing disaccharide is 
Select and explain. 
A. Sucrose, B. Fructose, C. Trehalose, D. Lactose
A: Sucrose
Answer: A: Sucrose 
Explanation: Repeated question