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: Pharmacology
[{'content': 'A patient of acute myocardial infarction being treated in intensive care unit developed left ventricular failure with raised central venous pressure. It was decided to use nitroglycerine. Which route of administration would be most suitable ? \nSelect and explain. \nA. Sublingual, B. Oral, C. Intravenous bolus injection, D. Slow intravenous infusion', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]