Which of the following is the most likely cause of these findings? A male newborn delivered at 34 weeks gestation by an uncomplicated spontaneous vaginal delivery develops respiratory distress 30 minutes later. His respirations are 40/min. Physical examination shows cyanosis and lower rib retractions with respiration. Chest x-rays show fine densities with a reticulogranular appearance bilaterally.
A. Erythroblastosis fetalis B. Extralobar sequestration C. Intracranial hemorrhage D. Pulmonary surfactant deficiency E. Situs inversus