input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** In postductal coarctation of the aorta, blood flow to the lower limb is maintained through which of the following arteries –   (A) Umblical artery and subcostal arteries   (B) Thoracic and pericardiophrenic arteries   (C) Intercostal arteries and superior epigastric artery   (D) Ant and post circumflex arteries
output: ['(C) Intercostal arteries and superior epigastric artery <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Umblical artery and subcostal arteries  (B) Thoracic and pericardiophrenic arteries  (C) Intercostal arteries and superior epigastric artery  (D) Ant and post circumflex arteries <> possible answers', '  In postductal coarctation of the aorta, blood flow to the lower limb is maintained through which of the following arteries – <> context']