This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pediatrics
[{'content': 'Central bronchiectasis is seen with \nSelect and explain. \nA. Cystic Adenomatoid Malformation, B. Cystic fibrosis, C. Broncho carcinoma, D. Tuberculosis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The distribution . bronchiectasis mar be impoant diagnostically A central - Perihilar allergic bronchopulmonary aspergillosis. Predominant upper lobe o Middle and lower lobe - Cystic fibrosis or one of its variants. Distribution is consistent with PCD Lower lobe involvement is - Middle lobe and lingular segment of the LUL involvement is characteristic of non tuberculous mycobacteria (NTM). Idiopathic bronchiectasis REF : OP-GHAI 9th edition', 'role': 'assistant'}]