Under the Federal Rules Regulating Food and Drugs,which of the Following

Under the federal rules regulating food and drugs,which of the following is true?

A) Food must be pure 100 percent before it can be sold to consumers.
B) Food may contain certain impurities,such as insect parts,as long as it is not adulterated.
C) If a food contains impurities,such as insect parts,these impurities must be disclosed on the food label.
D) All food must be inspected by the government before it is sold.
E) Food labels must contain a notice that all impurities cannot be eliminated.