Final answer:
Tonya's mother is describing a compassionate palliative care approach that respects her daughter's autonomy and involves her in decisions about her end-of-life care.
Step-by-step explanation:
Tonya's promise to her terminally ill daughter reflects a commitment to uphold her daughter's autonomy and dignity at the end of her life. By promising to not control her life, be truthful, and involve her daughter in important decisions about her care, Tonya's mother is describing a form of palliative care that emphasizes patient-centered decision-making and maintaining quality of life. This approach is becoming increasingly recognized as a crucial part of compassionate end-of-life care where the focus is not just on the treatment, but also on the emotional and psychological well-being of the patient.