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': "A 8 year old boy presents with recurrent pneumonia since birth. The boy had a history of delayed passage of Meconium at  birth. Probable diagnosis is \nSelect and explain. \nA. Kartagener's syndrome, B. Bronchiectasis, C. Cystic fibrosis, D. Hirnchiprung disease", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Features of Cystic fibrosis\n\nDelayed passage of Meconium\nRecurrent pneumonia\nSteatorrhea\nLate onset Diabetes\nAzoospermia', 'role': 'assistant'}]