This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
[{'content': 'Bag and mask ventilation in newborn resuscitation is contraindicated in - \nSelect and explain. \nA. Diapharagmatic herina, B. Pulmonary hypoplasia, C. Tracheo - oesophageal fistuala, D. Laryngomalacia', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Diaphragmatic hernia", 'role': 'assistant'}]