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: Unknown
[{'content': 'Bronchial arteries supply the lung up to - \nSelect and explain. \nA. Major bronchi, B. Alveolar duct, C. Tertiary bronchi, D. Respiratory bronchioles', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Respiratory bronchioles o Bronchial arteries supply the lung till the beginning of respiratory bronchiole (conducting part) and then anastomose with pulmonary arteries.", 'role': 'assistant'}]