Despite numerous instructions, an elderly patient with Parkinson's disease is unable to administer ophthalmic medication without assistance due to hand tremors. What is the best course of action for the nurse?

C Obtain a prescription for a visiting nurse to administer the medication twice a day. A Continue to reinforce the instructions to boost the patient's self-confidence. B Determine if a family member is available and willing to administer the medication. D Document the patient's inability to administer the medication without assistance.