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: Medicine
[{'content': 'A 36 year old patient presents to emergency with shock .His ECG shows ST elevation in lead 2 and lead 3 and avF. What is the most likely cause of shock \nSelect and explain. \nA. Papillary muscle rupture, B. Cardiac rupture, C. Right ventricular infarction, D. Septal perforation', 'role': 'user'}, {'content': 'Answer: C \nExplanation: ECG features\xa0 are suggestive of inferior wall MI . Right ventricular\xa0 infarction\xa0 presents as hypotension and shock.', 'role': 'assistant'}]