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 of thiazides is by ? \nSelect and explain. \nA. Inhibiting Na+/Cl- sympoer in DCT, B. Inhibiting Na+/Cl- sympoer in PCT, C. Inhibiting Na+K+2Cl- in ascending limb of loop of henle, D. Inhibiting Na+K+2Cl- in descending limb of loop of henle', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Inhibiting Na+/Cl- sympoer in DCT", 'role': 'assistant'}]