Ants carry dead ants out of an anthill and dump them on a trash pile. To study this behavior, a scientist paints a live ant with a chemical from dead ants. The scientist observes that the other ants repeatedly carry the live ant, which is kicking and struggling, to the trash pile, until the chemical wears off. What do these observations suggest?A. The chemical is a stimulus that triggers an innate behavior.B. The process of carrying a live ant to the trash pile is an example of problem solving.C. The ants have become imprinted on the chemical.D. The ants have learned through the experiment to associate the chemical with dead ants.