When administering 0900 medications to four clients, which prescription should the nurse administer first?

An antibiotic, to be administered every 6 hours starting at 0900.

An analgesic topical patch, to be replaced every 24 hours at 0900.

A diuretic, to be administered every 12 hours, at 0900 and 2100.

An antianxiety agent, to be administered every day at 0900.