input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Acetyl Co-A acts as a substrate for all the enzymes except:   (A) HMG-CoA synthase   (B) Malic enzyme   (C) Malonyl CoA synthetase   (D) Fatty acid synthetase
output: ['(B) Malic enzyme <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) HMG-CoA synthase  (B) Malic enzyme  (C) Malonyl CoA synthetase  (D) Fatty acid synthetase <> possible answers', '  Acetyl Co-A acts as a substrate for all the enzymes except: <> context']