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': 'Fluroide ions act by inhibiting - \nSelect and explain. \nA. Enolase, B. Hexokinase, C. Cytochrome oxidase, D. Carbonic anydrase', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Enolase', 'role': 'assistant'}]