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
Profuse expectoration of two months durations and clubbing may be seen - 
Select and explain. 
A. Sarcoidosis, B. Polyarteritis nodosa, C. Pulmonary artery hypertension, D. Allergic bronchopulmonary aspergillosis
D: Allergic bronchopulmonary aspergillosis
Answer: D: Allergic bronchopulmonary aspergillosis 
Explanation: None