This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Mechanisms of Enzyme Action, Subject name: Biochemistry
[{'content': 'Alcohol dehydrogenase is a/an - \nSelect and explain. \nA. Transferase, B. Hydrolase, C. Ligase, D. Oxidoreductase', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Oxidoreductase o Alcohol dehydrogenase is a NAD-linked dehydrogenase (oxidoreductase)o It catalyzes the oxidation of ethanol to acetaldehyde.", 'role': 'assistant'}]