The nurse is caring for a client with increased ocular pressure due to open-angle glaucoma. Which diuretic below is used specifically for open-angle glaucoma?

A. Hydrochlorothiazide is a thiazide diuretic that can be used for hypertension and edema but is not specifically indicated for open-angle glaucoma. B. Furosemide is a loop diuretic used primarily for fluid overload conditions and does not have a specific role in the treatment of open-angle glaucoma. C. Acetazolamide is a carbonic anhydrase inhibitor that reduces aqueous humor production and is specifically used to lower intraocular pressure in clients with open-angle glaucoma. D. Spironolactone is a potassium-sparing diuretic used mainly for conditions like heart failure and hypertension, and it is not indicated for the treatment of open-angle glaucoma.