This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Nitrogylerine is effective when admistered sublingually because it is \nSelect and explain. \nA. Non ionized and lipid soluble, B. Ionized and lipid soluble, C. Non ionized and water insoluble, D. Ionized and water water insoluble', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Nitroglycerin is effective when retained sublingually because it is non inonized and has very high lipid solubiility.thus the drug is absorbed very quickly Refer KDT 7th/e P6', 'role': 'assistant'}]