The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Enzyme regulating the conversion of ethanol to acetaldehyde:   (A) Alcohol dehydrogenase   (B) Acetaldehyde dehydrogenase   (C) Catalase   (D) Enolase
['(A) Alcohol dehydrogenase <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Alcohol dehydrogenase \n (B) Acetaldehyde dehydrogenase \n (C) Catalase \n (D) Enolase <> possible answers', '  Enzyme regulating the conversion of ethanol to acetaldehyde: <> context@']