A nurse is collecting data from an older adult client who reports feeling anxious about financial concerns and having difficulty sleeping for several months. Which of the following actions should the nurse take

a) "Encourage the client to self-prescribe over-the-counter sleep aids."
b) "Suggest the client consume more caffeinated beverages to stay alert during the day."
c) "Refer the client to a financial advisor for immediate resolution of financial issues."
d) "Explore relaxation techniques and coping strategies to manage anxiety and improve sleep."