An individual’s mental predisposition that influences perceptual expectations is one’s perceptual a. bias b. knowledge c. assumption d. set

An individual’s mental predisposition that influences perceptual expectations is one’s perceptual  D. set
 The predisposition to perceive things in a certain way is called as perceptual expectancy or perceptual set. 

A group of expectations that mold experience by pushes people become sensitive to specific kinds of information is known as set.