This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: fungal infection, Subject name: Medicine
Allergic bronchopulmonary Aspergillosis is commonly a complication of: 
Select and explain. 
A. TB, B. Bronchogenic carcinoma, C. Cystic fibrosis, D. Wegener's granulomatosis
C: Cystic fibrosis
Answer: C: Cystic fibrosis 
Explanation: ABPA represents a hypersensitivity to Aspergillus fumigatus. It is common in asthma and teenagers with cystic fibrosis.