When Betty Had a Cold,she Went to the Grocery Store

Multiple Choice

When Betty had a cold,she went to the grocery store to buy some nighttime cold medication.She saw both a national brand and the store brand on the shelf in similar green triangular bottles.Betty assumed that the medications were the same because of the similar bottles,so bought the less expensive store brand.When she used it that evening,she realized it was not as effective as the national brand.What perceptual organization principle played a role in Betty's choice?

A) closure
B) figure and ground
C) grouping
D) bias for the whole
E) subliminal perception