B. an artificial surfactant.

infanet respiratory distress syndrome

You get bronchiolitis in infants. It is caused by the respiratory syncytial virus infection. The infant does not have fever and chest is clear. The condition responds to humidified oxygen. You get respiratory infection and then infant may come with severe respiratory distress by next day, in respiratory distress syndrome. You get horrified to see the child. The infant usually succumb to this type of infection, even in intensive care unit.

i would recommend you ask your doctor.

An artificial surfactant