input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Isosorbide 5 — mononitrate is preferred because   (A) Less tolerance develops   (B) Sublingual absorption is better   (C) Longer duration of action   (D) Direct coronary vasodilatory action is more
output: ['(C) Longer duration of action <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Less tolerance develops  (B) Sublingual absorption is better  (C) Longer duration of action  (D) Direct coronary vasodilatory action is more <> possible answers', '  Isosorbide 5 — mononitrate is preferred because <> context']