This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: ECG and Arrhythmias 1, Subject name: Medicine
[{'content': 'Comment on the diagnosis from the ECG shown below: \nSelect and explain. \nA. RCA occlusion by thrombus, B. LAD occlusion by thrombus, C. LCX occlusion by thrombus, D. Aefact', 'role': 'user'}, {'content': 'Answer: A \nExplanation: ECG shows a hea rate of 100/min with ST elevation in lead II, III , aVF and V4R. Indicates inferior wall MI and occlusion of Right coronary aery.', 'role': 'assistant'}]