A 30 year old woman with gestational diabetes came with true labor pains at 30 weeks of gestation. The woman is given glucocoicoid therapy. Prenatal steroid therapy is given to
Increase blood flow to the fetal lungs Increase fetal PO2 Shift the fetal oxyhemoglobin dissociation curve to the right Increase the lecithin/sphingomyelin ratio in the amniotic fluid