A 32yearold pregnant woman is referred for genetic counseling at 6 weeks gestation because of alcohol exposure. She explains that she drank several alcoholic beverages daily for one week during her honeymoon 4 weeks ago. She expresses concern that this exposure will cause fetal alcohol syndrome (FAS). Which of the following is the BEST response to this patient?

A. Reassure her that the risk for FAS is not increased given the timing of the exposure.
B. Reassure her that the risk for FAS is not increased given the limited duration of the exposure.
C. Confirm that there is an increased risk for FAS since there is no known safe amount of alcohol consumption during pregnancy.
D. Confirm that there is an increased risk for FAS and probably other birth defects because organogenesis has begun.