Suppose that you are watching a movie. Two men are talking, and the camera focuses on a man in a blue shirt, with long sideburns. The focus shifts to the other man. Then it returns to the man in the blue shirt$-$but now his sideburns are about an inch shorter. If you fail to notice that he looks different, you are exhibiting

a$.$ bottom$-$up processing.

b$.$ change blindness.

c$.$ the principle that face recognition is "special."

d$.$ the recognition$-$by$-$components approach.