system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Apgar scores were 3, and 6 at 1 and 5 minutes. At 10 Apgar scores were 3, and 6 at 1 and 5 minutes. At 10 minutes child shows features of breathlessness,on CXR-mediastinal shift was there, possible causes – 
a) Bilateral choanal atresiab) Pneumothoraxc) Congenital diaphragmatic herniad) Hyaline membrane disease
assistant
The correct answer is  Congenital diaphragmatic hernia and pneumothorax cause respiratory distress with mediastinal shift to contralateral side.
Bilateral choanal atresia and HMD cause respiratory distress, but no mediastinal shift.