Some Human Infants, Especially Those Born Prematurely, Suffer Serious Respiratory

Some human infants, especially those born prematurely, suffer serious respiratory failure because of

A) the sudden change from the uterine environment to the air.
B) the overproduction of surfactants.
C) the incomplete development of the lung surface.
D) lung collapse due to inadequate production of surfactant.
E) mutations in the genes involved in lung formation.