This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diuretic, Subject name: Pharmacology
[{'content': 'Which of the following diuretic causes impaired glucose tolerance? \nSelect and explain. \nA. Spironolactone, B. Thiazides, C. Amiloride, D. Canrenone', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Thiazides Drugs causing hyperglycemia* Asparaginase* Ethacrinic acid* HIV protease inhibitors* Pentamidine* Chlorthalidone* Frusemide* Niacin* Thiazides* Diazoxide* Glucocorticoids* OCP* b-adrenergic agonists* Encainide* Growth-hormone* Phenytoin* b-blockers (propranolol)* Thyroid hormones* Vacor* Clozapine* a-IFN* Glucagon* Cyclosporine* Tacrolimus* Protease inhibitors* L-Asparaginase", 'role': 'assistant'}]