<prompt> Which of the following are true about ASD?Ostium primum is the most common defectChildren are always growth retardedSurgery is electively done at 1-3 year age for large defectsCommonly affected by Infective endocarditis  <response>: c. Surgery is electively done at 1-3 year age for large defectsRef: Nelsons 20e p 2190-2191The timing for elective closure of ASD is usually after the 1st yr and before entry into school. 