A. Question the metformin HCI order: Metformin 500 mg PO daily at 0900 is a standard dose for type 2 diabetes management. There is no immediate concern with the dose or timing that would make it unsafe or require urgent clarification. It can be prepared as scheduled. B. Prepare to administer the 0900 medications: While administering medications on time is important, the nurse must first ensure that all prescriptions are safe and accurate. Administering digoxin without clarifying a potentially unsafe dose could put the client at risk for toxicity. C. Clarify the digoxin order: Digoxin 0.25 mg PO daily is commonly prescribed, but decimal errors are a frequent source of medication mistakes. The nurse must verify the order with the healthcare provider before administration to prevent overdose or underdose, which could cause serious cardiac complications. D. Clarify the hydrochlorothiazide order: Hydrochlorothiazide 25 mg every 12 hours is a typical regimen for hypertension or fluid management. The dose is standard, and there is no immediate safety concern requiring urgent clarification.