Question ID:PT60 S3 Q17 Passage:Any food that is not sterilized and sealed can contain disease-causing bacteria. Once sterilized and properly sealed, however, it contains no bacteria. There are many different acceptable food-preservation techniques; each involves either sterilizing and sealing food or else at least slowing the growth of disease-causing bacteria. Some of the techniques may also destroy natural food enzymes that cause food to spoil or discolor quickly. Stem:If the statements above are true, which one of the following must be true? Correct Answer Choice:DChoice A:All food preserved by an acceptable method is free of disease-causing bacteria. Choice B:Preservation methods that destroy enzymes that cause food to spoil do not sterilize the food. Choice C:Food preserved by a sterilization method is less likely to discolor quickly than food preserved with other methods. Choice D:Any nonsterilized food preserved by an acceptable method can contain disease-causing bacteria. Choice E:If a food contains no bacteria, then it has been preserved by an acceptable method.