The correct option is C Diuretic
Diuretics are drugs designed to increases the excretion of water and salt from the body in the form of urine. Diuretics act primarily by blocking reabsorption of sodium at different sites in the nephron. Thus makes the urine hyperosmotic, which retain more water in it, increasing the urine volume and thus used to treat high blood pressure e.g., acetazolamide, mannitol and Lopamide.