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': 'Inactive precursors of enzymes are known as \nSelect and explain. \nA. Apoenzymes, B. Coenzymes, C. Proenzymes, D. Holoenzymes', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]