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: Dental
[{'content': 'Fluoride action on carbohydrates in reducing the caries is by \nSelect and explain. \nA. Inhibiting enolase, B. Inhibiting fructose, C. Inhibiting the sucrase, D. Inhibiting glycolase', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]