This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thorax: Aerial supply, Subject name: Anatomy
[{'content': "Rasmussen's aneurysm involves: \nSelect and explain. \nA. Bronchial aery, B. Pulmonary aery, C. Intercostal aery, D. Aoa", 'role': 'user'}, {'content': "Answer: B \nExplanation: Rasmussen's aneurysm refers to inflammatory pseudo-aneurysmal dilatation of the small to medium pulmonary aery branches that develop in the vicinity of a tuberculous cavity. from the rupture of a Rasmussen's aneurysm Life threatening massive hemoptysis is an uncommon yet life threatening complication of cavitary tuberculosis (TB)", 'role': 'assistant'}]