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': 'Pick the odd one out: \nSelect and explain. \nA. Lactose, B. Maltose, C. Sucrose, D. Cellulose', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]