Regarding Teratogens and Birth Defects, Which of the Following Statements

Multiple Choice

Regarding teratogens and birth defects, which of the following statements is FALSE?

A) Radiation, lead, and pesticides are considered teratogens.
B) Cystic fibrosis, PKU, and hemophilia are considered teratogens.
C) Pregnant women do have direct control over many teratogens.
D) Repeated heavy drinking during pregnancy is the most common cause of birth defects in the United States.