Final answer:
The best therapeutic strategy for a nurse to help older adult clients achieve Erikson's developmental task of integrity versus despair is to assist them in finding meaningful activities and relationships.
Step-by-step explanation:
In the context of Erik Erikson's psychosocial development stages, the challenge older adults face is characterized by the task of achieving integrity versus despair. In an adult day care setting, the nurse should adopt therapeutic strategies that facilitate this developmental task. Therefore, the best strategy would be:
c) Assist clients in finding meaningful activities and relationships.
This is because by engaging clients in meaningful activities and helping them maintain or develop fulfilling relationships, the nurse supports the clients in reflecting positively on their lives, consequently fostering a sense of integrity and satisfaction. This approach aligns with a life review process beneficial in promoting psychological well-being in late adulthood.