A baby born at 30 weeks of gestation who develops respiratory distress characterized by atelectasis (collapse of the lung)probably suffers from a physiological defect in:

A)Production of surfactant component phosphatidylglycerol.
B)Lack of surfactant components cholesterol and cholesterol esters.
C)Diaphragmatic movement.
D)Surfactant proteins.
E)Clara cell dysfunction.