The following are predisposing factors for persistent pulmonary hypertension of the newborn (PPHN) EXCEPT

(A). Persistent pulmonary hypertension of the newborn (PPHN) occurs in term and post-term infants. Predisposing factors include birth asphyxia, MAS, early-onset sepsis, RDS, hypoglycemia, polycythemia, maternal use of nonsteroidal anti-inflammatory drugs with in utero constriction of the ductus arteriosus, maternal late trimester use of selective serotonin reuptake inhibitors, and pulmonary hypoplasia due to diaphragmatic hernia, amniotic fluid leak, oligohydramnios, or pleural effusions. PPHN is often idiopathic