This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kidney, Subject name: Pharmacology
Mechanism of action of acetazolamide is:- 
Select and explain. 
A. Inhibition of aldosterone, B. Stimulation of aldosterone, C. Inhibition of carbonic anhydrase, D. Stimulation of carbonic anhydrase
C: Inhibition of carbonic anhydrase
Answer: C: Inhibition of carbonic anhydrase 
Explanation: Name Site of action Site of action Mechanism Loop diuretics Thick ascending limb of Loop of Henle Furosemide Torsemide Na-K-2Cl sympoer inhibition Carbonic anhydrase inhibitors PCT Acetazolamide Dorzolamide Brinzolamide Carbonic anhydrase inhibition Thiazides DCT Hydrochlohiazide Chlohalidone Na-Cl sympoer inhibition Osmotic diuretics Non-specific Mannitol By osmotic effect Epithelial sodium channel blockers Collecting duct Amiloride Triamterene eNa channel blockade Aldosterone antagonists Collecting duct Spironolactone Epleronone Antagonism of aldosterone receptors