The crime of producing and selling toxic and harmful food refers to the act of mixing toxic or harmful non-food raw materials into the food produced or sold, or selling food that is known to be mixed with toxic or harmful non-food raw materials.
According to the above definition, which one of the followings constitutes the crime of producing and selling toxic or harmful food?
A food factory added excessive edible pigment to a rainbow candy produced. Eating this kind of candy for a long term could be harmful to human health.