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: Surgery
[{'content': 'Suicidal enzyme is - \nSelect and explain. \nA. C ycl oxygen ase, B. Lipoox ygen se, C. Dehydrogenase, D. Pyruvate kinase', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Cycloxygenase", 'role': 'assistant'}]