This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Acute coronary syndrome, Subject name: Medicine
[{'content': 'What is the etiology of Dressler Syndrome? \nSelect and explain. \nA. Viral, B. Autoimmune, C. Idiopathic, D. Toxin-mediated', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Dressler syndrome Autoimmune process. Post-pericardiotomy syndrome following myocardial infarction Unusual complication after percutaneous procedures such as coronary stent implantation, after implantation of epicardial pacemaker leads and transvenous pacemaker leads, and following blunt trauma, stab wounds, and hea puncture. Involves the pleura and pericardium', 'role': 'assistant'}]