This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bronchiectasis, Subject name: Medicine
Persistent coarse crepitations in the chest are diagnostic of? 
Select and explain. 
A. Pulmonary TB, B. Pulmonary edema, C. Cavity lesion, D. Bronchiectasis
D: Bronchiectasis
Answer: D: Bronchiectasis 
Explanation: Fine crackles Coarse crackles Soft, high-pitched and very brief Louder, lower in pitch and last longer Indicates an interstitial process- pulmonary fibrosis or congestive hea failure. Indicates an airway disease- bronchiectasis.