What Does Evidence on the Effects of Alcohol Consumption During

What does evidence on the effects of alcohol consumption during pregnancy strongly suggest?

A) Although alcohol can be harmful to the developing fetus, moderate drinking may help the mother lower her blood pressure during the pregnancy.
B) Only the children of chronic alcoholics will suffer long-term effects.
C) The effects of alcohol are clearly dose related, but there is no known safe level of consumption.
D) Social drinking poses no threat to the developing fetus and mothers should just relax and enjoy as necessary.