While Teaching a Preconception Class, the Nurse Should Include Which

While teaching a preconception class, the nurse should include which of the following recommendations concerning intake of vitamins during pregnancy?

A) Take supplemental folic acid daily to reduce the risk of trisomy 21 (Down syndrome) .
B) The pregnant woman should consult the recommended dietary allowance (RDA) guidelines regarding vitamins.
C) Take Vitamin C daily to reduce the risk of neural tube defects.
D) The pregnant woman should consume the greatest amount of vitamins possible.