Within Professional Counseling Orientation and Ethical Practice, CACREP highlights the importance of counselors understanding impairment, burnout, and self-care—for themselves and in general occupational contexts.

Burnout is typically defined as a state of emotional, physical, and mental exhaustion that results from chronic work-related or career-related stress, often accompanied by decreased sense of accomplishment and depersonalization.

Option D captures burnout as a phenomenon associated with career-related (occupational) stress, which is the broad, accurate description tested on the NCE.

Options A, B, and C each describe possible symptoms or correlates (hopelessness, confusion, fatigue, illness), but none by themselves constitute the definition of burnout. Burnout is best understood as a syndrome arising from prolonged job stress, making D the best answer.