This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Pharmacology
[{'content': 'Best drug among the following for treating hypeension in a diabetic patient: \nSelect and explain. \nA. Losaan, B. Propranolol, C. Thiazides, D. All of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Losaan is angiotensin II receptor antagonist. They are the preferred drugs for hypeension in diabetic patients as they prevent diabetic nephropathy- microalbuminuria It is available as 50 mg tablet (REF. Essentials of medical pharmacology K D TRIPATHI 8th Edition)', 'role': 'assistant'}]