This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thorax, Subject name: Anatomy
In the lungs bronchial aeries supply the bronchopulmonary tree 
Select and explain. 
A. Till teiary bronchi, B. Till segmental bronchi, C. Till respiratory bronchioles, D. Till alveolar sacs
C: Till respiratory bronchioles
Answer: C: Till respiratory bronchioles 
Explanation: Bronchial aery supplies the bronchial tree till respiratory bronchiole. BD CHAURASIA'S HUMAN ANATOMY VOLUME 1. 6TH EDITION.page no.242 fig 16.9