What kind of demographic factors can influence the threshold besides the sheer number of people AP Human Geography

Your answer is going to be d.

The statement is correct because if there is a bunch of noise around you and you are focusing on the noise you will not comprehend your questions and lessons nor will you be able to get the proportion information you need and you will likely spend many more hours on work than normal than if you could ignore the sound

Answer dot(3) is most used;