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: Pathology
[{'content': 'Which of the following sugar is called as Arch Criminal: \nSelect and explain. \nA. Fructose., B. Sucrose., C. Glucose., D. Maltose.', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Sucrose is called as arch criminal because it is most cariogenic.', 'role': 'assistant'}]