<prompt> A new born weighing 1000 g is born at gestational age of 30 weeks with respiratory distress within 1hr of bih. All of the following are the diagnostic possibilities EXCEPT?Diaphragmatic herniaHMDBronchopulmonary dysplasiaPulmonary hemorrhage  <response>: Bronchopulmonary dysplasia BPD -occurs in neonate of HMD who have been treated with O2 mechanical ventilation It usually takes weeks to develop. So, BPD does not present within few hrs after bih. 