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 30-year old male presents with severe pain chest, breathlessness, hypotension and ECG shows ST elevation in V3, V4, V5 and V6 leads. He will be best treated with : \nSelect and explain. \nA. Streptokinase, B. t-PA, C. Heparin, D. PTCA', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]