Answer:
b. moderately and consistently
Explanation:
Fetal alcohol syndrome (FAS) belongs to a group of disorders called fetal alcohol spectrum disorders. It originates when a woman consumes alcohol during pregnancy, especially when the woman consumes alcohol moderately and consistently. Alcohol can cause birth and developmental abnormalities in the baby.
Alcohol can be transmitted from the mother's blood to the baby's blood. It passes through the placenta. Even a small amount of alcohol can harm the fetus. Doctors do not know how much alcohol ingested is sufficient to cause defects. The risk increases with moderate to heavy alcohol consumption and overeating. But even the social habit of drinking alcohol can be dangerous.
