______ functioning is the best predictor of quality of life in individuals who are coping with a chronic illness.​

A) ​Physical
B) ​Psychological
C) ​Physiological
D) ​Environmental

Psychological Functioning

Refers to the mental processes and behaviors associated with an individual's mental health and well-being.

Quality of Life

The general well-being of individuals and societies, encompassing health, comfort, and happiness.

Chronic Illness

Long-term health conditions that have persistent effects on a person's health, often requiring ongoing medical attention and management.