To build suspense. Plays are not interesting without conflict. In this case the conflict surround John Proctor, the tragic hero, we would not be interested in Puritan drama.
Answer:
What is this from? let me know so i can give you a real answer!!
You could move to a different location, increase your volume, take steps to decrease the physical noise around you (asking people to be quiet, turn down a stereo.
You can choose either one of the these answers they both right!!
The authors experiment showed us that you should emphasize the importance as a good source