Which of These Statements Regarding Prenatal Risk Factors Is TRUE

Which of these statements regarding prenatal risk factors is TRUE?

A) Fathers who smoke can contribute to decreased birth weight in their infants.
B) Fetal alcohol syndrome is associated with excessive intake of alcohol during the second trimester of pregnancy.
C) Illicit drug use is responsible for a majority of spontaneous abortions and stillbirths.
D) Mothers who are not immune to rubella should be immunized during the first trimester of pregnancy to prevent the fetus from being exposed to rubella.