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: Pathology
[{'content': 'Type of pericarditis in tuberculosisa) Hemorrhagicb) Constrictivec)  Fibrinousd)  Serofibrinous \nSelect and explain. \nA. ac, B. ab, C. ad, D. bc', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Causes of hemorrhagic pericarditis\n\nTuberculosis\nMalignant involvement of pericardial sac\nBleeding diathesis\nCardiac surgery\nPost myocardial infarction\nDissecting aneurysm of aorta\nUremic pericarditis', 'role': 'assistant'}]