Toby wants to see whether packaging information affects the way people rate breakfast cereal. The same cereal is put in three kinds of packages: a brown box that says "To start your day off with a smile"; a yellow box that says "For extra energy all day"; and a white box that says "Fortified with B complex and iron." In this study, the:

A. kind of cereal is confounded with the color of the box. B. package information is confounded with the color of the box. C. package information is confounded with the kind of cereal. D. rating of people is confounded with the package information.