A older adult client admitted for dehydration is being discharged. In which way should the nurse instruct the client to maintain proper hydration?

Drink sixteen to twenty 12-oz glasses of fluid (5,760 to 7,200 mL) per day

Drink six to eight 8-oz glasses of fluid (1,500 to 2,000 mL) per day

Drink one to two 4-oz glasses of fluid (120 to 240 mL) per day

Drink five to six 6-oz glasses of fluid (900 to 1,080 mL) per day