question: Q:A patient in the neonatal intensive care unit develops severe cyanosis. Cardiac exam reveals a single loud S2 with a right ventricular heave. Echocardiography reveals an aorta lying anterior and right of the pulmonary artery. Which of the following processes failed during fetal development?? 
  {'A': 'Fusion of the membranous ventricular septum', 'B': 'Aorticopulmonary septum to spiral', 'C': 'Ectopic ductal tissue tightening', 'D': 'Reentry of viscera from yolk sac', 'E': 'Fusion of septum primum and septum secondum'},