Ms Brown Must Speak in a Loud Voice to Be

Ms. Brown must speak in a loud voice to be heard by all the children in her room, even when the children are behaving appropriately. What measures should she consider first to correct the situation?

A) Make new rules so that only one child is moving at a time.
B) Add carpet, draperies, pillows, or soft textures to the environment.
C) Open the door to the hallway.
D) Play quiet music in the background.