Look at the Following Word: CAT

Look at the following word: CAT. As you examine the middle letter, you notice that it contains two straight, almost vertical lines, angled at the top and a shorter horizontal line joining them. You conclude that this is the first letter of the alphabet "A." What
Perceptual process have you used to arrive at this decision?

A) bottom-up processing
B) perceptual set
C) top-down processing
D) subliminal processing
E) lateral inhibition