This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Medicine
[{'content': "Rasmussen's aneurysm involves? \nSelect and explain. \nA. Bronchial aneurysm, B. Pulmonary aneurysm, C. Veebral aery, D. Posterior intercostal aery", 'role': 'user'}, {'content': "Answer: B \nExplanation: In post primary pulmonary TB,hemoptysis can occur from rupture of a dilated vessel in a tuberculous cavity(Rasmussen's aneurysm) Reference:Harrison's medicine-18th edition,page no:1345.", 'role': 'assistant'}]