The Best Way to Maintain Appropriate Room Temperature in the Reception

The best way to maintain appropriate room temperature in the reception area is to ____.

A) observe the patients for signs of being too cold or hot
B) allow patients to regulate the thermostat in the reception area
C) set the thermostat at a predetermined setting and never change it
D) periodically survey patients to see if they are comfortable
E) set the thermostat as directed by the building superintendent