Final answer:
The nurse can best facilitate the client and family's ability to cope in the end stage of cancer by providing emotional support, information, and resources.
Step-by-step explanation:
The nurse can best facilitate the client and family's ability to cope in the end stage of cancer by providing emotional support, information, and resources. This can include regular communication with the family about the client's treatment and condition, offering opportunities for family members to ask questions and express their concerns, and connecting the family with support groups or counseling services. By being present, compassionate, and responsive to the needs of the client and their family, the nurse can help them navigate the challenges of coping with the end stage of cancer.