Researchers for Frito-Lay Discovered That Matte Beige Bags of Potato

Researchers for Frito-Lay discovered that matte beige bags of potato chips picturing potatoes and other healthy ingredients in the snack do not trigger activity in the anterior cingulate cortex, an area of the brain associated with feelings of guilt, as much as shiny bags with pictures of chips. Frito-Lay then switched out of shiny packaging in the United States shortly thereafter. This is an example of using

A) subliminal marketing.
B) permission marketing.
C) optimization marketing.
D) neuromarketing.
E) surge marketing.