Which of the Following Statements Is True

Which of the following statements is true?

A) In the United States,molds and protozoa are responsible for most cases of food-borne illness.
B) Sulfites are added to grain products during the enrichment process.
C) In the United States,most fruits,vegetables,mushrooms,and deli meats undergo irradiation to preserve them.
D) Pregnant women,very young children,and people who have weakened immune systems have high risk of food-borne illness.