Several Years Ago, a Major Ketchup Manufacturer Experimented with Selling

Multiple Choice

Several years ago, a major ketchup manufacturer experimented with selling ketchup in different colors, including green, purple, and others. The idea was that kids would be excited by different colors, even though extensive blind taste tests indicated that the flavors of the different products were identical. The product failed and was discontinued after only a few years. Children just did not seem to be able to accept that it was still ketchup even though it was not red. This sort of reliance on the appearance of an object is most typical of ____ children.

A) ​sensorimotor
B) ​preoperational
C) ​concrete operational
D) ​formal operational