Final answer:
The grandmother is demonstrating unmitigated communion by consistently prioritizing the needs of others over her own self-care.
Step-by-step explanation:
The grandmother is demonstrating unmitigated communion (option A) by consistently prioritizing the needs of others over her own self-care. This behavior is selfless but could be detrimental to her own well-being, as evidenced by her worsening arthritis and depression.
Unmitigated communion refers to an individual's tendency to prioritize the needs and welfare of others at the expense of their own self-care. In this case, the grandmother's constant involvement in helping others, such as driving other seniors to their doctor's appointments or visiting sick friends, demonstrates her selflessness. However, her lack of self-care is resulting in negative consequences for her health and emotional well-being.
It would be important for the friend and other family members to encourage the grandmother to prioritize her own self-care and seek support, such as assistance with driving or finding other ways to support her community without neglecting her own health.