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': 'Enolase is inhibited by: \nSelect and explain. \nA. Chloride, B. Cyanide, C. Fluoride, D. All of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Enolase is inhibited by fluoride, and when blood samples are taken for measurement of glucose, it is collected in tubes containing fluoride to inhibit glycolysis. Ref: Harper 28th edition, chapter 17.', 'role': 'assistant'}]