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': 'Mechanism of action thiazide is ? \nSelect and explain. \nA. Na+Cl- sympo inhibitor, B. Na+K+ sympo inhibitor, C. Carbonic anhydrase inhibitor, D. Osmotic diuresis', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Na+ Cl- synpo inhibitor", 'role': 'assistant'}]