An Infant Born Prematurely in Gestational Week 25 Has Neonatal $\mathrm{Po}_{2}$

An infant born prematurely in gestational week 25 has neonatal respiratory distress syndrome. Which of the following would be expected in this infant?

A) Arterial $\mathrm{Po}_{2}$ of $100 \mathrm{~mm} \mathrm{Hg}$
B) Collapse of the small alveoli
C) Increased lung compliance
D) Normal breathing rate
E) Lecithin:sphingomyelin ratio of greater than 2:1 in amniotic fluid