A Nurse Working on an Alzheimer's Unit Notes That Just

A nurse working on an Alzheimer's unit notes that just before the supper hour, many of the residents become more anxious and confused-exhibiting typical "sundowner's syndrome"-making the evening meal an unpleasant ordeal. As a method to try to decrease their turmoil during this time, the nurse introduces which therapy into the daily routine?

A) Biofeedback.
B) Spiritual therapy.
C) Pilates.
D) Music therapy.