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: Medicine
Most likely precursor to bronchiectasis is - 
Select and explain. 
A. Tuberculosis, B. Carcinoma, C. Bronchial adenoma, D. Bronchopneumonia
D: Bronchopneumonia
Answer: D: Bronchopneumonia 
Explanation: None