input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Interstitial fluid volume can be determined by:   (A) Radioactive iodine and radiolabelled water   (B) Radioactive water and radiolabelled albumin   (C) Radioactive sodium and radioactive water   (D) Radioactive sodium and radioactive labelled albumin
output: ['(D) Radioactive sodium and radioactive labelled albumin <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Radioactive iodine and radiolabelled water  (B) Radioactive water and radiolabelled albumin  (C) Radioactive sodium and radioactive water  (D) Radioactive sodium and radioactive labelled albumin <> possible answers', '  Interstitial fluid volume can be determined by: <> context']