Which of the Following Has Been Shown to Be Associated

Which of the following has been shown to be associated with pesticides on foods?

A) Pesticide residues on organic foods are similar to those on conventionally grown foods.
B) Pesticides are easier to remove from organic foods because of their greater water-solubility.
C) Pesticide residues are substantially reduced by the use of unprocessed animal manures used to grow leafy vegetables.
D) Pesticide chemicals in the urine of children given an organic foods diet for 5 days are dramatically lower than before the diet.