The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Magnesium is needed for the activity of which enzyme?   (A) Phosphatase   (B) Aldolase   (C) Dismutase   (D) ATPase
['(D) ATPase <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Phosphatase \n (B) Aldolase \n (C) Dismutase \n (D) ATPase <> possible answers', '  Magnesium is needed for the activity of which enzyme? <> context@']