Pediatrics True about coarctation of aorta – A Most common site is distal to the origin of the left subclavian artery B Most common age of presentation is at 15–20 years C Upper rib notching is due to erosion by dilated collateral vessels D Right ventricular hypertrophy 💡 Explanation True about coarctation of aorta – ✓ Correct Answer: A. Most common site is distal to the origin of the left subclavian artery