A patient who had been experiencing significant stress learned to use progressive muscle relaxation ...

ANS: A
Objective measures tend to be the most reliable means of gauging progress. In this case, the patient's elevated blood pressure, an indication of the body's physiological response to stress, has diminished. The patient's report regarding activity level is subjective; sitting quietly could reflect depression rather than improvement. Appetite, mood, and energy levels are also subjective reports that do not necessarily reflect physiological changes from stress and may not reflect improved coping with stress. The patient's weight change could be a positive or negative indicator; the blood pressure change is the best answer.