Which of the Following Accurately Describes the Link Between Lead

Which of the following accurately describes the link between lead exposure and nutrition? 

A)  Absorption of lead is higher on an empty stomach. 
B)  Lead toxicity is most prevalent in children around the time of puberty. 
C)  Federal regulations have successfully prevented widespread lead toxicity. 
D)  The symptoms of lead toxicity can be reversed by adding iron to the diet. 
E)  Lead exposure is extremely rare in the United States.