Answer:
(A) Adaptation.
Step-by-step explanation:
Perceptual systems adapt to their inputs. As a result, prolonged and constant exposure to particular stimuli alters judgments about subsequent stimuli. That is, while sensory adaptation reduces our awareness of a constant stimulus, it helps free up our attention and resources to attend to other stimuli in the environment around us. This phenomenon is commonly assumed to be sensory in origin. Our senses are constantly adjusting and adapting to our environment, as well as to us individually and what we are experiencing, such as aging or disease. Changes in the decision-making process, however, may also be a component of adaptation.