If You Have Undergone Sensory Adaptation for the Sounds That

If you have undergone sensory adaptation for the sounds that are all around you as you study in the library,what will you be most likely to do

A)  be unable to concentrate 
B)  block out all sounds and ignore any changes 
C)  become increasingly irritated by the sounds if they do not change 
D)  notice when the quality of those sounds changes