At the National Cheerleading Contest, All the Contestants Are Seated

Multiple Choice

At the national cheerleading contest, all the contestants are seated in one area within the stadium. Although 1,000 students are seated in this area, your eyes discern about 100 groups due to each group of cheerleaders having different color outfits. The way you grouped these students is most likely due to the perceptual principle of

A) continuity.
B) nearness.
C) similarity.
D) contiguity.