This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Pharmacology
[{'content': 'Diuretic that is useful in mild to moderate hypertension is: \nSelect and explain. \nA. Loop diuretics, B. Thiazides, C. Osmotic diuretics, D. Potassium sparing diuretics', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (B) Thiazides(Ref: Harrison 19th/e p1623)Thiazides are not only diuretics of choice for mild to moderate hypertension but also the first line antihypertensive drugs in these patients.', 'role': 'assistant'}]