input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Vitamin K in its coenzyme form is regenerated by which enzyme?   (A) Glutathione reductase   (B) Pyruvate carboxylase   (C) Dihydrofolate reductase   (D) Epoxide reductase
output: ['(D) Epoxide reductase <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Glutathione reductase  (B) Pyruvate carboxylase  (C) Dihydrofolate reductase  (D) Epoxide reductase <> possible answers', '  Vitamin K in its coenzyme form is regenerated by which enzyme? <> context']