The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A child to emergency with accidental ingestion of cyanide. It blocks citric acid cycle by blocking:   (A) Aconitase   (B) Acetyl-CoA production   (C) NAO   (D) Citrate
['(C) NAO <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Aconitase \n (B) Acetyl-CoA production \n (C) NAO \n (D) Citrate <> possible answers', '  A child to emergency with accidental ingestion of cyanide. It blocks citric acid cycle by blocking: <> context@']