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: Anatomy
In the lungs, bronchial arteries supply the bronchopulmonary tree 
Select and explain. 
A. Till tertiary bronchi, B. Till segmental bronchi, C. Till respiratory bronchioles, D. Till alveolar sacs
C: Till respiratory bronchioles
Answer: C: Till respiratory bronchioles 
Explanation: bronchial artery supplies bronchial tree till respiratory bronchiole.